Ah, gotcha David. Thanks for the clarification. I'd imagine they probably aren't the most sanitary. But the vials of bio chemicals make them look like something from a '60s sci-fi flick, which is cool.

 

@Esther: here's a google image of an actual dart gun that looks pretty cool. 

http://www.battlestrats.com/images/2010/01/Tracer-Dart-Gun.jpg

 

I might try modeling that one myself. 

 

~Shane