If you are allergic to it, peanut butter is deadly. Anything can be deadly if used incorrectly, thats why we have stupid warning labels on everything. Maybe all anemones should be labeled: WARNING Sea Anemones are for external use only, not to be licked or used as a pacifier or food...
Msj is the shrimp queen and her advice is spot on. I will add, I was the same way, I initially got shrimp to help control algae in my planted tank and now am hooked on them. IMO you will be surprised how entertaining and interesting they are. Then come the snails...
Love it all but especially Frankensteins Monster! I agree with DrV, the headless Horseman would be really awesome. Leatherface is another horror favorite and easier to put together, especially if you have a chainsaw around.