How do you “sign” your piece of art? Who embeds a special symbol? Who signs with a paint pen? Who makes an etched mark? Do you make any “signature” at all? I would love to see some examples!
I use a “Ti Pen” – a titanium tipped scribe that leaves a permanent, very fine mark. It will withstand firing temps so you can sign flat work and then slump.
Also, Harbor freight battery operated engraver costs about $6 and is perfect for the job. Pentel silver marker and Sharpie red PAINT marker (not regular sharpie) both work if fired on. Temp needs to go to 1100 or more.