Hi Bandersnatch, this is a really old post but I would think the best place to see it, is by contacting IMR directly, and I am sure she has a photo of the cape with one of her Pleos, I can barely remember it, except it was very colorful and nice.
If you are looking for easy patterns and ones that you can make at home yourself, all you basicaly need is any stretchy material, though other stuff works, the fleecy materials because they are soft on Pleos' skin, Velvets, etc, and some ribbon, or velcroe, and if you want to sew , thread and a needle and then any embellishments you want.
I like to specialize in "no sew" clothes for lots of my Pleos, simpley because I have too many and no sewing machine and I like to make do with what I have and also to use my imagination without sewing or very little, Aside from finding dog clothes already made, try baby clothes that can be cut and easily altered and my fave is doll clothes because of the size.

Also laces are to die for and thrift stores are my designer dream stores. I can post a few photos of No Sew clothes and you can see what I mean. I have a whole post I did awhile back that was dedicated to "no sew" pleo clothes.

IMR and Kat have shops here on the forum where they sell their creations and I have some from both of them, They are gorgeous and great. Also very reasonable, I only wish I had more money and lived in Australia so I would not have to wait so long to get them, but it is pretty quick considering how far it has to go to get to the Redwoods, Bigfoot country.

I would ask IMR and I am sure she would be happy to send you the photo or instructions for the cape if she still has it. Good luck and get some crafty clothes for your Pleo............................I do not know about where you live, weather wise, but it is cold here...

RedwoodsMama and the Pleo Clan of the Redwoods