A bit slow on the Futurama front right now. While waiting for the fourth movie, I got an email from "Luke", which I'll just post verbatim:

So, my friend and I were watching "Bender's Game" about a week ago and noticed the Zoidberg skull and clawbones symbol above the exit of the Cave of Hopelessness. We said aloud, "That looks pretty cool." "Wanna get it tattooed?" "Yeah, sure." Being the mega-nerds we are, we decided it was a good idea. So after tracing it from my TV, we went to a shop and we each got it tattooed on us. I got it on my arm, my friend got it on his chest. Totally worth it.