Well, I made the holster myself out of genuine leather from a pattern I found on a french Star Wars site. Sry, dont remember which one it was, was 3 years ago. As for the replica gun I found it on a flee market for around 15 Euro. No one wanted it, so I bought it. It's as heavy as the real gun (1 kg) and I'm using it both on sci-fi conventions and bike meetings.
I could probably make it on my own, but I like you kids.