I hope this isn't redundant, but it's so good (I think, anyways) that I thought it would be worth it. I was reading another forum recently, and there was a post there referring to a website containing a whole bunch of .pdf files on how to make all sorts of labware. There are books there on making stuff for chemistry, physics and biology labs. It's pretty cool.
http://icase.unl.edu/i_on-line_pubs.htm
