What would you do with 10$?

Lose it in a slot machine.

I would buy a whoopee cushion.

Buy 10 ice-cream sandwiches

By a used nintendo-3ds game, and get hundreds of hours of enjoyment out of it.

robux gift card

I would buy myself 10 croissants and then instantly regret the fact I didn't use it on a patron for lichess.

i would buy 15dollars and with the 5 dollars i have ill buy 100 dollars...

trade horsey for 200001281958125021581205092701925 dollars

I'd invest it into stocks.

@Komokid , @AOOP09's croissants are best!
There are at $1 each, but buying more at once results into discounts, so don't worry still you will find at least 1 Dollar available to donate LiChess!