Foam Board Magnetic Marble Run

Here's an inexpensive homemade version of a 2D magnetic marble run I found online. I wanted to buy it, but it was really expensive and sold in Switzerland.

Materials:
colored foam board
utility knife or x acto knife  
large cutting board
ruler
pencil
removable adhesive
strong magnets

Directions:
Make a plan for your pieces.
Draw your plan on the foam board.
Cut out pieces using utility knife and ruler if lines aren't curved.
Attach magnets with reusable adhesive.
Magnets - ceramic 3/4 inch #6 magnetic strength from Hobby Lobby
Adhesive - Simply Tacky from Hobby Lobby

Here's a video of the foam board magnetic marble run in action.  


My kids have been combining this marble run with a plastic bottle magnetic marble run we made and having a lot of fun. These marble runs were made for an event for a local children's museum start-up. You can find out more about the children's museum and the plastic bottle marble run at this link.