Boy, do I have a story. I bought one of those wash away felt tip pens that had a purple cast to it that fades away with time. It did a great job, just like it was supposed to. While marking a friend's herloom quilt, I grabbed a lookalike pen, same color inside and out, that turned out to be PERMANENT. And I mean with capital letters. :shock: I tried everything to get it out. Nope. Thank goodness it was in a small motif at the corner, and on muslin, so all was not lost. But I learned not to keep my pens and pencils in the same area as regular ones.