Years of wondering what exactly ARE the things in some peoples' avatars has finally led to another pointless fun thread.

So, to the following people (and more that I'm forgetting), what IS that in your avatar?
RobV, RobS, pgrzelak, ricin, peakmop, cwillenbrock... and so many more...

And if you have a confusing avatar that really needs explaining, please do, because I may not be the only one scratching my head,