I have to get a gift for a 7-8 year old boy that I know next to nothing about. I only know that he likes to draw, but I got him a little art set already. He doesn't have any gaming systems or anything like that, so video games are out. What kind of stuff do kids that age like? Do you have any specific recommendations on what I can get him? The budget is about $20. I'd rather not just give him a gift card.