Rubber tubing (1/4 latex hose. You should probably use 3 ft. I used 2 ft and it wasn't enough. I found some in the plumbing aisle at Lowe's)
Glue (Anything that will bond wood and rubber, I used Gorilla Glue)
Binder (normal 3-ring binder)
As a Pro member, you will gain access to download any Instructable in the PDF format. You also have the ability to customize your PDF download.