Good Cheap Handhelds Recommendations?

Gonna be giving some candy / snacks buckets for friends in a party, wanna give them some hidden gift inside without going overbudget, so thought on perhaps some cheap handhelds

Is there some brand I can get multiple of that arent too expensive? Doesnt have to emulate much, like GBA, NES, SNES and Gameboy its fine

I dont mind if its a knock off or stuff, this is just a small thing to add as a surprise in a bucket of candies and snacks haha