I just wanted to show some of the less artistic things you can do with a laser. Having the ability to draw something in CAD, and then have the laser cut it out to absurd precision can help with random projects like this one. This is my 2008 senior EE project at Clemson.
The challenge was to make a hard drive that physically reads and writes data onto play-doh. It writes with a dot matrix print head we tore out of an old printer and reads the data back with a digital camera that is interpreted in MatLab.
We also realized that since we were just sending the data to the play-doh hard drive in matrix form, we could draw black and white pictures with it, so this video shows us printing a Clemson paw. Also, acrylic is very easy to tap for screw holes, so it is a fun and easy material to work with.