This is probably as evil as you can get this cute owl model to look. The red eyes give it a somewhat demonic touch. I found the folding sequence to be pleasing, and like that it can be folded nicely even from small paper. Watch out, though, the model is completely open-backed - as if you'd cut the owl in half lengthwise. Now if that isn't a scary description... but Halloween's coming up, after all!
Paper: 11.75cm square of tissue foil, black/red
Model: 5.6cm high, 4cm wide, 2.25cm deep