They're wearing painters stilts at the highest setting and made the frames for the legs and arms out of PVC conduit that they bent into the correct shapes. The frames are covered with stretchy swimsuit fabric.
This costume is tall:
Has a sweet tail and horns:
And completely terrifies people:
I'm really proud of the creativity and work David put into this costume. They managed to make two identical costumes in one week and had to spend most of that time making it up as they went. I think they turned out wonderfully and Wookie Foot has already mentioned something about new costumes for the next festival. All in a day's work for a talented artist.