Mornin' everyone!! The use of mascot (albeit unofficial) are totally regional to me. I've found that sorors back home (in the NE section of the states) use rabbit, which sorors down here (in the south) primarily use frogs. I've seen some use mice. I've also noticed the pink panther being used by sorors in the midwest and west coast.
Oh well...personally I've tried to stick to using the ivy leaf, but I do have several frog candles around my place!