We need a cuddly animal. Seriously.
Perl has the Camel. Python has a python (which are VERY cuddly snakes). Linux has Tux the penguin.
I think the Julia triangle logo is excellent, and we have seen how it is adapted to the various packages like Julia Physics.
There was a discussion on having perhaps a stand at the FOSDEM conference. We need something to be visible at an event. Also something which is a bit of fun.