Drill a hole in the corncob a wee bit smaller than the bone. You first want a friction fit to determine at what depth you get the best sound. Then use a permanent glue for the final attachment. Kenny Morgan made me a wingbone striker a few years ago with a corncob. You may want to drill a larger hole on the other end of the cob, as Kenny did, and if you don't fill the bone with glue, you may have a striker/yelper combo.
Why be good when you can B-Mobile or Spin & Strut.