Check out how one canoe-paddler created a canoe-sailer. He build a couple outriggers.
Lots of sail on this boat too. And check out the mast base.
Links for this boat can be found at:
http://forum.woodenboat.com/showthread.php?267364-One-Sheet-Canoe-Outrigger
https://www.canadierforum.de/t14020f18-ft-Segelkanu-in-Gorewood-Technik-1.html
(Thanks to Hien Ngo for sharing these :-)
I’ve linked to the images at their original locations on the net:
Here also is a short video, which appears to show how floats can be made with just one sheet of plywood (different from the what the pictures of the ama build in the images show):