Answer:
What insect does a blacksmith manufacture?
A spent round or a slimy critter.
I have a shell and move very slowly but I don't live in the sea. What am I?
What lives where it cannot breathe and has a hole in its back
Creeping on its belly, curled into a ring. Eyes forever open, beware its lethal sting
What is so fragile that saying its name breaks it?