Tricks are those key chain things
Like the robot, prada shoe, etc
Check out some at Styledrops
http://www.styledrops.com/shoes-29,148.html
Edit: Links not working correctly, but click on the "tricks" link near the top
Butterfly Trick on Styledrops
http://www.styledrops.com/handbags-5273.html
TPF Blog back in 05 on Robot Trick
http://www.purseblog.com/accessories/prada-handbag-robot-charm/