Yep, I did it. My favourite T-shirt (a black one) managed to collect a fair bit of white thermal transfer compound (Unick, FWIW). I removed most with metho, but there's still a fair old stain that seems resistant to removal. Naturally, SWMBO gave me the usual "I told you to wear an apron" nonsense.
Any clues on the best method to restore 'black boy' to his original condition?