How do I delete an embarassing character from your use history?

See, I just used a character that looked like a normal matchstick, but someone else thought it also looked like something... offensive. (O_O) I even remade it, so i made the remake a lit matchstick, but I can't change the original, which I found starting a Grand Prix, and later in my history. (-_\) Is there any way I can erase it from my history?