This top is inspired by my love of spintops and an antique top I got for my Birthday. The top was a metal disc that looked a little like a propeller. When you put it on the table and blew straight down, it spun. I then reverse engineered this to work with stickey notes. These specific notes are a little harder to find. I found some on Amazon . . . 1-3/8 Inches x 1-7/8 Inches, Canary Yellow. Fortunately, a few thousand of these should be more than enough to play with.