The Heavy Metal Wargaming site has some counters for use in starship games set in the Star Trek: The Next Generation universe.
star trek
Warhammer Star Trek Rules
Warhammer Star Trek is a fan-created modification of the Warhammer 40K rules. I ran across these when looking for Star Trek rules to use with my newly painted 15mm figures.
Star Trek Shuttlecraft Galileo Paper Model
The classic Star Trek shuttlecraft Galileo is available as a free paper model.