After being tortured by seeing all the "diy plates" with sharpies, I feel honor bound to post that you really should be using a Pebeo Porcelaine 150 pen. Seriously, this is what we use and sell at work-- don't use sharpies people!
DIY Hand Painted Chevron Mugs
Make this cute hot chocolate mugs using porcelain pens.
Alisa Burke - porcelain pen decorating
Upcycle your plates with a porcelain pen| Grandma Glamour
De jolies assiettes à realiser avec les feutres #Porcelaine150 de #Pébéo
Designa dina egna muggar – Design your own mugs
DIY Cross stitch monogram mug using porcelain pen
Black Porcelain Pen on white cups and saucers. Fun.