Using this Free Star Trek Avatars Making Tool & Game is really simple. You can think of it as a dressing game:
1) Select the category to show the available designs.
2) Select the design you want.
3) Select the colours for the design.
4) Go back to step 1 to keep playing with your avatar and when finished go to the save page.
When saving your new profile picture you can choose the size and aspect ratio.
You can bookmark the save page for your reference in the future.
Once stored on your computer you can upload it into your favourite social network, instant messaging program, etc.
Finally, if you really like your new Star Trek Avatar, share it with your friends!