Someone asked me about how to clean these tools, so I thought I would share this...
Basically, when you unscrew the brass pieces, they become very easy to rinse warm water through. As soon as I'm done carving, I do this to remove any residue of pumpkins. But if any pumpkin was left to dry on these parts, you could just soak the metal pieces in soapy water.
It's a good idea to rinse them off soon after carving though, as the acidic pumpkin juice can discolor the metal (this won't hurt it's performance, it just won't look as "pretty").
On the topic of soaking in water, the wood handles are coated in a food-safe wax wood finish, but not sealed entirely watertight. So it's safe to rinse under running water, but not recommended to soak the wood for any length of time.