Shhh!.... don't tell her.... I made this Star Trek/Spock shirt for my daughter who is a bit of a fan. We have the original series dvds as well as movies.
I found a good picture of the science insignia online and used the MTC program to trace and cut it out. I also found the Star Trek font (Federation) for the back. I used the freezer paper method and fabric paint. Also the Simply Screen glitter/foil fabric adhesive by Plaid and Martha Stewart fine glitter. I didn't know how big the insignia should be so I just made it whatever I thought would be okay - it's 2 inches tall.
I might go over the black inside again with a fine brush.