I have the same question. I have shirts that I did last year with the light/clear transfer paper, and they all cracked and were awful before we even wore them or anything. So, the shirts are fine, but not useable because of the designs. I would love to be able to re-use the shirts instead of buying new ones if possible. So, would it be possible to iron-on a dark shirt type of transfer? I don't know if it would stick. I hate to waste the transfer paper, but I hate to waste the shirts, too.
Thanks for any insight.