I used to have a simple telescope with a simple camera and made some moon mosaics back then. I would take 1 shot of a part of the moon, then the next shot of another part, and so on. Then I would stitch all those parts together with a freeware program called AutoStitch. This resulted in 1 big photograph of over 10.000 pixels :) Ofcourse too big and unsharp, so bringing it down to this kind of sizes is giving the best result. I have 1 version of 4000 pixels and on that one I made a very cool video that is like flying to and over the moon. It can be seen on YouTube on http://youtu.be/5M9CBXuFKGE (watch in high setting and full screen for best effect).
Also have a HD video of the moon, is liking flying to and over it :) See http://youtu.be/5M9CBXuFKGE?hd=1