I just have to say, I'm thrilled with how this backpack turned out. You can find the Star Trek fabric at Joanns or Camelot Fabrics. Normally, I don't pay that much for fabric, but it's Star Trek! and if you know me, that's reason enough.
I actually got it for 40% off too, so I got a good deal.
I will proudly say that I'm a geek and I love this fabric. I also got a yard of this red Star Trek fabric. It's flannel so I'm not sure what I'm going to do with it yet, any ideas? I was thinking possibly a messenger bag.