A.) Sexxy shrimp are awesome. Not only do they have a fun behavioral pattern of waggling their butts around, but it's also really funny to see the look on non-reefers faces when you tell them you have a group of sexxy shrimp.... and then procede to explain the aforementioned butt-waggling.
B.) I <3 <3 <3 pom pom crabs. Soooo cute!
C.) But, for the "poor man's bemusement," you can't go wrong with nassarius snails. When you think about them in a Romero state of mind, they're just like little zombies crawling from their graves to feed! And, oh how they hunger!