Known Joke products
Anti Gravity Hats - "Ruin a gentleman's day by making his hat fly away!"

Aviatomobile - a flying toy car. Made in the likeness of their father's flying car.

Boxing telescope - when squeezed, gives the user a black eye which is almost impossible to remove.

Broom Broom kit - Broomstick-modifying kit. It Blings up your broom! Includes a pointed cap for the end of the handle, a pair of fins that slide onto the handle, a tailfin that is attached on top of the bristles and a rocket booster for the back underside.

Bruise removal paste - The Bruise removal paste is a thick yellow paste guaranteed to remove any bruise within an hour.

Bubble machine - This bubble machine is a machine shaped like a real human which produces bubbles into the air.

Comb-a-Chameleon - Magically changed the user's hairstyle.

Creepy Crawlies - Assortment of charmed lifelike insects.

Demon Box - Contains one or more demons. A label on the packaging warns buyers not to feed anything that comes out the box after midnight, lest it multiply and begin to savage people.

Dungbombs - A magical stink bomb that gives off a putrid odour.

Electric Shock Shake - Shocks the person you shake hands with in different ways. (Not safe for use by pregnant witches)

Extendable Ears - used to hear voices at the other end of the ear.

Fanged Flyer - Fanged Frisbee

Happy Bubble Box -

Headless Hats - Make the wearer's head invisible (along with the hat itself).

Lucky Dip - Random items that will be revealed upon opening. Results can be good or bad!

Magical Moustache Miracle Stubble Grow - A collection of fake facial hair products. Adds years to appearance.

Mega Box -

Mysterious Midnight Moon Madness -

Nose Biting Teacup - Ordinary looking teacup that will bite the nose of anyone who tries to drink from it.

Otters Fizzy Orange Juice -

Out to Lunch Fake Moustache - Magical Disguise. A lotion which will cause hair to temporarily sprout from wherever the lotion is rubbed on.

Penelope's Purple Pussy Cats -

Portable Swamp - creates a swamp when used.

Quality Weasley Goods -

Quills - in Smart Answer, Self Inking and Spell Checking varieties.

Reusable Hangman - "Spell It Or He'll Swing."

Rubby O’Chicken - Rubber chicken that can do an Irish step dance

Screaming Yo-yo - Presumably shrieks when a person plays with it.

Self-propelling Custard Pies - Throws itself in the face of the prankster's intended and unlucky target.

Self-Writing Quill -

Shimmering Silver Salt Drops -

Sticky Trainers - Are yellow trainers with suction cups attached to the soles. The wearer can use them to climb walls and presumably to walk across ceilings as well.

Sunny Spells - Creates light/Dispells clouds

Tiny Twister - A miniature tornado contained in a tall glass jar.

Trick wands - turn into a variety of unexpected things when waved. The cheapest into rubber chickens or briefs when waved, the most expensive beating user around the head.

U-No-Poo - a causative product with a name meant to parody "You-Know-Who" (causes constipation).

Umbridge on Unicycle - a toy version of Dolores Umbridge, rides around on a unicycle across a tightrope, balancing with buckets of liquid, saying phrases such as "I will have order", and "I really hate children".

Unlucky Dip - Same as lucky dip, except only gives 'bad' prizes.

Weasley Authentic -

Weasley Joke Box - They have the ability to punch everyone that are not a Weasley. However, a Weasley can pick up useful objects.

Weasley's Snowstorm - A snow globe with a model Shrieking Shack inside and a metal spray pump on top that dispenses magical snow when pressed

Weasley's Wet Weather - A tall glass jar with an umbrella-shaped lid that contains some type of enchantment that creates artificial rain.

Weasley’s Wonderous Wands - The wands are designed to light up depending on the caster's mood.

Weasleys' Dragon Roasted Nuts - Chestnuts roasted by a miniature dragon.

Weather in a bottle - Holds wind or water or some kind of weather that when unleashed would affect a small area around the bottle.

Explosive Enterprises
Bang Bang Boggart Banger
Bombtastic Bomb
Box 'O' Rockets
Crystal Incantation Comet
Demon Dung Crackers
Diabolic Dare Devils
Dragon Fire
Exploding Whizz Poppers
Feathery Flamingo Flame Fuzzer
Fred-N-Georges' Pyrotechnics Compendium
Fred Weasley's Basic Blaze Box
George's Compendium Box of Pyrotechtrix
Loonar Loop Luminators
Miraculous Mystic Mayhem Makers
Peace Disturber
Rocket Box
Silver Sparkling Snakes
Spectrum Splasher
Thestral Thrasher
Thor's Thunder Cracker
Voodoo Fountain
Weasleys' Wildfire Whiz-bangs - unstoppable fireworks that violently explode when hit by a stunning spell and multiply by ten at any attempt to vanish them. These include a shocking-pink Catherine wheel, fire-breathing dragons, sparklers that spell out profanity, rockets with long tails of silver stars, and standard firecrackers. When any two types collide, they make new effects. Include Basic Blaze Box and Deflagration Deluxe.
Whack Trance Whammy Rocket

No-Maj Magic
Edurado's Unbreakable Eggs
Haunted Deck
Just Like That Hat
Mary's Magic Mice
Miraphorus Magic Set
Repeating Rabbit
Saunders' Invisible Silk
Smith & Co. Tick Tock Clock
Soldiers on Parade

Defence Objects
Decoy Detonators, when dropped they run away and explode out of sight, giving the person a diversion if necessary.

Jinx-Off

Peruvian Instant Darkness Powder When thrown into the air, this powder covers everything around it in darkness, which cannot be penetrated by spells like Lumos or Incendio, although the Hand of Glory can be used to see through it. It is used by Draco Malfoy against the members of Dumbledore's Army while smuggling Death Eaters into Hogwarts through the Room of Requirement.

Shield Hats, Cloaks and Gloves used by the Ministry of Magic for defence against enemy forces, using a Shield Charm.

WonderWitch
Calamity Lotion - Causes the drinker to become infatuated with the giver of the potion

Crush Blush - Causes the drinker to become infatuated with the giver of the potion

Cupid Crystals - Causes the drinker to become infatuated with the giver of the potion

Everlasting Eyelashes - Magical Cosmetic Aid

First Love Beguiling Bubbles - Causes the drinker to become infatuated with the giver of the potion

Flirting Fancies - Causes the drinker to become infatuated with the giver of the potion

Heartbreak Teardrops - Causes the drinker to become infatuated with the giver of the potion

Kissing Concoction - Causes the drinker to become infatuated with the giver of the potion

Love is Blind Eye Serum - Causes the drinker to become infatuated with the giver of the potion

Love Potions - that when drunk, will give the drinker an obsession with the one who bought the drink (love being impossible to manufacture). They work for up to twenty-four hours at a time, depending on the weight of the boy and attractiveness of the girl. Like all love potions the effects can increase the longer they're kept. This potion is very strong and only a very skilled potioneer can make the cure for the love potions.

Patented Daydream Charms - virtually undetectable highly realistic thirty-minute daydreams (side-effects can be: slight drooling and a dazed expression, Not for sale for wizards under 16).

Pygmy Puffs - miniature puffskeins with pink or purple fur. They have small, beady eyes and ears. Ginny Weasley is a known owner of Arnold the Pygmy Puff.

Ten-Second Pimple Vanisher - excellent on everything from boils to blackheads.

Twilight Moonbeams - Causes the drinker to become infatuated with the giver of the potion

Sweets
Canary Creams - temporarily transfigures the eater into a canary.

Candy In a Can - "This product contains candy"

Edible Dark Marks - "They'll make anyone sick!"

Jumping Snakes - It looks like a Stick-O Wafer stick that is popularly known in the world of No-Majs. Described on the packaging as "Venomous Vertical Sea Snakes", Nautious Jumping Snakes are joke sweets.

Skiving Snackbox - A Skiving Snackbox is a range of sweets to make the user ill. The user develops strange symptoms depending on the type of snack eaten. The purpose of these was to make a student appear unable to stay in class. Most came in two colour-coded parts: one that would cause the malady, and one that would heal the pupil once they had left class. It should be noted that nosebleed nougat is most popular. They include: Fainting Fancies, Fever Fudge, Nosebleed Nougat, and Puking Pastilles.

Sugar Hexes

Ton-Tongue Toffee - when eaten, they cause the tongue to rapidly swell and turn purple.

Wakefields Off the Record Glow in the Dark Gum, glow in the dark bubblegum.