I need an idea

My SO has a three year old son, and when he Christmas shopped for him when he was two, his two year old was already "into" certain things.

I was a full time Nanny for a family this past year before I got pregnant myself. They're having it really hard this Christmas, and we have extra cash. Their son is now almost two. (february 10th) And when I asked what to get him, they just said "yes, he's into yes" so my SO and I decided a tricycle for a big gift, and we'd do his stocking. This little man is also severely lactose and tolerant. So what do I get for a toddler who is into "yes" and as far as stocking stuffers can't have anything sweet, that has ANY kind of milk in it.