Magnets + Makerbot = ? Contest

This is a post to start a design contest. Here are the rules:
1. Needs to be printable on a makerbot
2. Needs to use cheap and non dangerous magnets in a cool, or possibly funny, way (magnets from the makerbot store are a good example)
3. Post submissions on thingiverse by 5pm cst next Sunday, sept 5
4. Post a comment to this thing with a link to your submission

The prize is $25 in the makerbot store.

I will pick the winner but will rely heavily on user feedback.

Multiple submissions are allowed but srsly they need to be good.

Gpl, lgpl, or public domain only.