I was looking through the list of stack exchange sites, and I grew jealous of all their nice artwork. SciComp still just uses the default SE theme. It might be premature to think about redesigning the whole website, but we've been around for a while now, and I think that we should at least have our own icon.
My favorite icon out of the existing bunch is the one for Mathematics:
Simple and elegant, but with a deeper meaning that tells people what their site is all about.
If anyone has any good ideas, please put them in an answer bellow.