I blanked out my full name!
Actually, that certificate was scanned some years ago, and I Photoshopped my name onto it as the original typing had faded somewhat. I also enhanced the colours to make it sort of new. The original is very faded.
The scan and printout is now in a frame on the spare bedroom windowsill, and the original is in an envelope in a box in the loft with other memorabilia.
I still have my (metal) badge too.