I have no suggestion for a Scala mascot, but I do have one concern about some of the suggestions I have seen.
I would be careful about a dragon-like mascot that can be associated with the Chinese government, even subconsciously. The current government of China is very repressive, and some think it is a model for what is currently happening the West.
Yes, I realize that China has a long and great history, but its history since the Cultural Revolution is obviously not something to be admired, and the Chinese people are of course the main victims. Most in the West have no clue how little freedom the Chinese people have. I could cite some alarming examples, but this is clearly not the place for it.
I will continue to use Scala regardless of the mascot, but I just wanted to get this concern out there, for whatever it is worth.