great idea! But how about adding their age, or birthday?

Here are mine:

MAYA : Cat, calico, °02-01-2002
INKA : Cat, grey tabby&white, °08-27-2002
SYDNEY : Cat, black, °08-15-2000, +07-2002
BILLIE : Bunny, brown, °02-15-1999
JASPER : Guinea pig, white & grey, °07-2002