Marble Run

I love it when my kids invent some cool stuff - like yesterday when they wanted to create a marble run on their own.

Some cutting and some duct tapping later we had our first homemade marble run!

PS: all work (inventing, cutting, ducttaping and beta-testing) was done by my two sons (age 5 & 7!)

The big fun is to be creative. Invent new stuff or try it: just cut some cardboard, bend it and ducttape it. Then give it a test run and build the next thing.

... and this is just the beginning. The boys are already thinking about seesaws, canon-like features and other cool things.

What you need:

• cardboard
• ducttape
• a knive and a scissor
• a marble for the test-runs