Possible solutions:
1. [Investigate] a book called "Flumph Mating Rituals".
2. After completing the steps at the forge to create an item, and the Mould Chamber opens, clicking on the empty(?) chamber might reveal nothing. However, dragging across the top might pull your item out. Make sure your inventory is light enough to accept additional weight of... armor, if that's what you forged.
Amused to death.
