The astrolabe kit designed by the late Rod Webster, curator emeritus of the Adler collection, is available from the Adler Planetarium Shop, 1300 South Lake Shore Drive, Chicago, IL 60605, and probably other places such as Celestaire or The Time Museum. I have a few (10 or 15).
It consists of a kit reproduction of a 15th or 16th century European astrolabe in gold foil covered cardboard. It takes about a half hour to assemble. The result is a very good reproduction of an old instrument with all the attendant fragility and accuracy problems. The booklet that comes with it is very basic. James E. Morrison Astrolabe web pages at: http://myhouse.com/mc/planet/astrodir/astrolab.htm
