For #138 I really should have done a Misfits themed bot (We Are 138!) but didn't think about it until I saw what number I was up to. Anywho - here is my WobbleBot prototype, inspired by 62 Projects to Make with a Dead Computer by Randy Sarafan. The book has a wobbling drawing bot but I didn't have 4 pens that would fit the small fan I used, so I just gave it legs and let it go.
I need to pick up a couple 9 volt battery connectors and a couple switches at some point so I can finish this up.