I'll call him...The Professor!

For additional data please refer to:
"Gold Digger" by Kanye West

Those looped handles mean you're pulling something. The curved teeth means it wraps around something curved. The extra hardy construction suggests you're not lifting, but pulling in a direction where gravity can help you.

Craig Clayton (#1) has the best guess. Yank those babies out.

Don't leave out Dance Maniax and Dance Freaks! In these great games you wave your hands over infra-red sensors.
Look:
http://www.youtube.com/watch?v=ZKBm3kkANHM

They left out a category that demolishes most others in its popularity and its historic role in building the web: porn.