Roger makes a strker from Rhododendron, the kees are phenominal, the yelps are a lil on weak side because of the lack of weight in the striker. You can glue dime to the end of the head and the yelp gets pretty good.
Cox- makes a dymonwood kee striker, they kee and yelp very well, but the dymonwood kind of scars up the aluminum surface.
Matt McClain- makes real nice kee striker also.
Kevin Kirkpatrick from SC is making some nice kee strikers also. not sure of the wood.