This item is a set of 'false teeth' with an activation pin on the side.  To utilize this device you must pull the pin and throw the teeth at an opponent.  Follow the ranged attack rules to hit.

This item requires a ranged attack to use it.

Upon being struck with these 'fake teeth', the target takes 1d4 damage and perceives everything as hilariously funny and falls into fits of laughter if this spell affects it.

The target must succeed on a Wisdom saving throw of 14 or fall prone, becoming incapacitated and unable to stand up for the duration. A creature with an Intelligence score of 4 or less isn't affected.

At the end of each of its turns, and each time it takes damage, the target can make another Wisdom saving throw. The target has advantage on the saving throw if it's triggered by damage. On a success, the spell ends.

The teeth are consumed upon throwing and become a normal set of 'false teeth'.

Notes: Prone, Gimble Wildwander was a tinkerer that liked to make things to help himself out with a problem or while adventuring. He has created many an item and in fact in his later years has all but given up on the adventuring life, choosing instead to focus his time on creating new and wonderous items that will help people. He gives only a guarantee that the device will perform in it's intended use and can guarantee no success in an adventuring party or adventurer that if they use his devices, they should not be relied upon solely in defeating their foes or acquiring riches. He only asks that you bless him with a donation to help keep him in parts and supplies to continue to make these wonderous items. He can usually be found in his shop in Valoran, tending to his items and finding new things to create., Control, Debuff