Hack: Young Professor Makes Lab-on-a-Chip with Shrinky Dink and Toaster Oven

A young professor has used her favorite childhood toy, a laser printer, and a toaster oven to make microfluidic devices - tiny computer chips with plumbing that are usually fabricated in multimillion dollar labs

http://blog.wired.com/wiredscience/2007/12/macgyver-scienc.html