Acrylic cross-hair bracket for hobby laser

This bracket allows cheap cross-hair guide upgrade to hobby lasers such as those sold by FSE, using two cheap line lasers available from places like DealExtreme for less than $4 US each. This design is derived for the one posted by Glenn Langton on his website at http://glennlangton.blogspot.com/2011/08/laser-cutter-cross-hair-guide-for-under.html.