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
Alisa Burke - porcelain pen decorating
Make this cute hot chocolate mugs using porcelain pens.
porcelain pen designs
Designa dina egna muggar – Design your own mugs
DIY Cross stitch monogram mug using porcelain pen
DIY + Crafts
Upcycle your plates with a porcelain pen| Grandma Glamour
For the Home
PEN & GRAVY - PorcelaninPEN on plates… This would be so cool to do, if I am brave enough. More here... http://penandgravy.tumblr.com/page/2
Art projects and decorating