http://www.jesseshuntingpage.com/wingbone-call.html
http://www.customcalls.com/makeawingbonecall1.htm
http://hometown.aol.com/wingbonecall/Wingbone.html
The above three links are great pages to tell you how to build your own wingbone call. The top one even has links on how to scrimshaw and how to use the wingbone call. The wingbone call is a suction type call which requires you to " kiss" or suck on the end. It takes some practice but once you get it, it' s a great weapon in your turkey vest. Good Luck.