There are several things to consider.
What kind of level of detail are you talking about here?
Do you want something that looks exactly like the real thing no matter how many polys it takes, or should it be quickly and easily renderable?
Is it going to be used for close-up shots?
Is it the main feature or a prop for a character to hold?
Is it for a still image, a video, or a game?
Does it need to have moving parts and/or special effects (either still or animated)?
I could probably make one for use in a game or a video as long as the camera doesn't get too close to it fairly easily, but I don't really have the time to devote to it at the moment.