Wow! I've gotten such great responses from people! I'm glad you like it.
I suppose I'll respond to some of the questions I've gotten. The fabric on my shirts hasn't lost any of it's integrity since I put the bleach on it. I think the bleach pen might be more expensive, but gives really good results-no holes in the shirt and fairly crisp designs. Also I can get more than one t-shirt out of a pen, I usually do about a 5inx 5in design and I've been able to do like 6 shirts from one pen. The trick is that you don't use that much bleach when putting it on. You get the best results if you put it on as sparingly as possible. This way it can soak into the cloth better. Also for those just trying it if you put it on thinner you can see where it has dried and this is a good indicator of when to wash it off. You'll start seeing the color change underneath the gel. You'll want to make sure that the entire area has changed colors though otherwise you'll end up with patches the same color as your shirt. Also you might want to think ahead about what color the bleach part is going to turn. Navy blue and black turn orange, blue can range from lighter blue to white depending on how long you leave it down, red can turn from pink to white, and green goes from a light green to a tan. Again it all depends on when you wash it off, but it really doesn't take that long to get a good effect. If you're worried about it perhaps alter the shirt first (like cut off the sleeves, the neckline or the bottom) and test on the scraps you cut off, running time tests to see which color you want.
Again I love the responses, the yoda t-shirt is great Sewer Rat. I'd love to see the results that other people got.