Does anyone know any $10-$15?

You want to pick out a yoyo thats easy to learn on and is cheap and will last him a while for tricks.
I would definitely not recommend a speedaholic or a psg for him, even though they are dirt cheap and fantastic yoyos they come with a very wide gap and can be hard to learn on.
I just feel like they are more suited for more advanced players.

I personally would recommend the classic,velocity or maybe even a flipside.

I agree with this man. MagicYoyos and stuff are wonderful, but start small if he’s just beginning to learn.