Our assignment was to pic a political issue and incorperate both sides into the sculpture. I picked life and death because that's what most issues pertain to, and every time you turn on the news it's always about death and destruction. Plus I wanted to do something like H.R. Giger would do since he's my favorite artist.
And yes I sell them, price varies on size. A few examples are;
Dart Frogs: $25
Lionfish: $140
RTG Arowana: $500 (there's so much detail in it!)
I usually based my prices off of this; 1 foot = $100, 2 feet = $200, etc.