As I mentioned on the Hunting Journal, I just sent Gigginox back where he came from (I believe he escaped The Flying Dutchman.)
In the process, I got the following pieces:
Four Gigginox Hides
Five Pale Extracts (not quite sure how I ended up with five, but I need them for Villager Requests anyway)
One Gigginox Claw
One Gigginox Maw
One Venom Gland
One Uncanny Hide
Oh, BTW, I do not like bows and bowguns. Keep suggestions to melee weapons and armor.
And I just looked it up: there are no hammers made from Gigginox parts.