Saw this idea on pinterest and was so eager to try it! Here's what I did.
1-Found some plain t-shirts.
2-Asked my kids what they wanted on them.
3-Printed out images, cut out
4-Put newspaper inside shirts.
5-Traced around image with bleach pen, then took off paper and added details.
6-Let sit for 15-20 min.
7-Wash.
I found that the darker the shirt the better. The oranges didn't do as great as I hoped, the red did better. My kids enjoyed it though, and were excited to wear their "new" shirts.
Here's a blog post with more examples plus some tips. Show Tell Share.
P.S. I don't know why my pictures are all scattered-- can't figure it out!