Hi Sweets. No, nothing special has to appear to finish that puzzle. If you're ever stuck on a puzzle, here are 2 great suggestions from 2 other LDW fans:
Originally Posted By: aoh
Drag villagers sloooowly around the screen and see what they interests them. If you find something, drop them on it and see what they say
They'll usually at least give a hint.

Originally Posted By: Aviatrix
Back on topic: here's a general hint that comes in VERY handy. If you're not sure what to do, drop a villager on the crafting hut and see what is available for them to work with.

The original posts are in this thread.

It's also a good idea to try different villagers who are a master in at least one skill, although masters are not required for many things, they may be for some things. I hope this helps. smile
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Kathy
Lead Tester
Last Day of Work