What are some toys that are educational or skills to develop good hand eye cordination?

Strange as it sounds I really designing a toy for the Grade 1 child for a school project. It has to be a toy that educates and develops hand eye cordination. I have a few ideas what to do, but if you could give me a few of you would be much appriciated. Thank you!

Buy a pack of 50 cups Dixie and have built walls crown or castle – then that accident by driving a toy car through it. – Concentration – - Balance of patience – coordination – and a cheap toy, easy store, when he broke the one you just throw

Clicker Training: Cockatiel bring back all toys in my hand