How can i make a few hundread dollars as a 15 year old??

I'm from romania and i would like to make some few hundred of dollars (even like 200 is fine but would like more) for the summer. i would like to buy myself some new clothes, a new phones, some books, etc and i will travel a lot so i will need quite a bunch of money but i don't have enough. is there any way to earn some money?? right now, my only income source are chess tournaments, but i gain money occasionally and not that much. thanks.