I emailed her and she asked me to share this with you.
"Regarding the cat cone.
It is quilted which was a good part of the comfort for Cat.
It did flex forward or backwards which allowed her to sleep comfortably as it would flex out under her chin and not put pressure on her neck. When she walked it would curve back, not catching on Everything.
The cone shape was 1/4" darts in 6 places from the edge in. Deeper width would result in more cone shape, but still flex at the neck.
Another 1/2" in overall radius would have been the ideal width.
This one had buckram as the stiffener which, wet from her drinking, would reshape crumbled when dry. I am going to experiment with some of the other new bag stiff and how they react to water. Might do a version with floral wire bound in the edge.
Poor cat made it real clear she would not survive with the plastic cone which she pushed off 4 times in 2 hours."
Hope this helps.
Janey - Neat people never make the exciting discoveries I do.