I could not find any locally either. I found it on line at these sites:
http://www.joggles.com/store/catalog...18&src=froogle
http://www.byannie.com/water_soluble_threads.html
http://www.thefind.com/crafts/info-water-soluble-thread
There are more sites, just depends who you like to do business with and shipping costs always play into it with me. Good luck and enjoy!