Hi Joshman,
Here is a web site
http://www.lymax.com/cosmicone/collimator/
that I found searching with google. Earlier this year I attempted to make my own laser collimator with ideas from
http://web.telia.com/~u41105032/koll...i2.htm#mklaser
I used some old electrical conduit. A lot of fiddling around but had problems getting the pieces to stay inplace. In the end I purchased a laser collimator from Andrews Communication.
Hope you have more luck.
Peter