This has no particular reference today, other than I wore a little one earlier ! I do love it as a symbol though, I have very fond memories of watching Tommy Cooper and still find him hilariously funny. This is printed on some lovely Japanese paper I have had for years but never known what do with it. It turns out it is really very good for monoprinting on. It is also semi transparent so the colour you see is on a piece of paper mounted behind the print...... Just like that!
Also, check me out writing my initials backwArds so they appear the right way round in the final print!