I've done some searching and can't find any for free. Why don't you try your hand at CREATING your own paper piecing pattern?
draw some lines across picture of a pear and see if you can sew to make it look right.
On second thought.....Iris Folding is a technique used in scrapbooking/cardmaking. Here's a sample.....I'm sure it can be adapted to fabric.
Check out this site then do a search for a pattern..
https://www.pinterest.com/pin/512073420100684853/