I found this ready-made Peeramid on Amazon:
http://www.amazon.com/Hog-Wild-Peera.../dp/B000X4K292
This may be too new for patterns, but I did find a pattern that could be used for the pyramid portion:
http://scrapbooking.about.com/od/lay...id-Pattern.htm
You could make a lightly-stuffed fabric "snake" to hand sew around the edge, or possibly hand-sew a fabric-covered cord.