Twingle, you need to really soak the shirts with dye. Check out Roadtripper's picture, and at the bottom of the picture, see how drippy and soaked it is? Also did you let them set long enough? That was my problem, i was so darn excited to see how my design turned out!
I got the crystals at Hobby Lobby, (its a craft store here in Texas) or if you have a Michael's, i'm sure they sell them there to or possibly any type of sewing store may have them. If you get them at Hobby Lobby, ck there website every week, because they usually put a 40% off any regular price item. But if you want alot of crystals have some friends go with you, cause you can only use on coupon per item per transaction. Just a thought!