my wife is going to get one that reads beta k (reversed would be kate b, her name)
If I were running 100% used cooking oil or homebrewed BioD (I'm to lazy) I would get the plate delta G (might still, though it would be a misnomer).
I might change my name here to b.norby (if you try to type my name using the qwerty system on a keyboard that is set up for dvorak you get b.norby (anyone care to translate and post my name?). I'm thinking of getting this as my plate, too.