Make a Lego marble maze. This is a very spatial, tactile, logical task... requires clever thinking and some trial and error... great problem-solving activity.
This women is genius! A list of daily morning activities/tasks for the kids during summer break to keep their bodies and brains active and their house clean. kids get paid for doing the things on the list and at the end of the month those with enough money get to go somewhere fun with the money!
I tell all my patients this at physical therapy! Homemade Ice packs: 1 part rubbing alcohol to 3 parts water, gets really cold, but never hardens so you can manipulate it. every athlete (or mom) should pin this!