Bryan of Paper Foldables fame has released the Level 03 boss - Horned Witch - from his Kid Niki collection of enemy foldables. Here's what he has to say about this character:
went through several redesigns on this one. I wanted to have the Horned
Witch act as a compartment for the little boogies, so you can take her
hat thing off and store them inside of her, but structure got a little
flimsy. You can also see in some of the rough sketches how I played
with several different shapes for the witch. I had to constantly tweak
a lot of little things in the template file."