I get Happy Meals for myself :wink: , and save the toys for my grandkids. You could collect some of those. Also rings, etc, from gumball machines, and leave them in their little bubble holders, so they can open them.
You could probably get tons of things at the Dollar Store.
What a neat idea by the way!!
:D
Oh - and Barb's 'stash dolls' would be real cute!! She shows how here:
http://www.quiltingboard.com/posts/list/10250.page