Art: Cat Sign.
Without the tail (and a minor tweak to the ears), it could have been the bat sign.
Simple.
I often seen designs that are, and I tend to make art that doesn’t follow that kind of sparse and clean design philosophy, but I figure practice makes better.
Even here, once the design was conceived, I had to muddy it up with the ghosted duplicates, both to fill space out better and give some greater visual appeal. I’m thinking a more practiced artist would have found a way to avoid that, but I’m not sure how.
The idea is simple enough, but once I added the ears I noted a couple of things. One was that it could quite easily be the “Bat Sign” instead, and the other was the at sign has that nice little tail there just waiting to be extended to complete the illusion of an alternate typographic scheme where every last glyph is somehow animalified.
I toyed around with some alternates, but if you want to keep that middle a intact, there’s only so much you can do, and the placement of the ears precludes adding whiskers unless you want to completely distort the whole setup. Fur would have broken the crisp lines of the symbol, though perhaps a better artist could have done fur without ruining that.
On the whole a nice clean-enough, simple-enough piece of art, one hopes.