Red bear, there is a lot of grey and rough dogwood growing in the highway right of ways in the KC area. MoDOT is spraying it right now. You may want to see about cutting some. Koan is right, try for bamboo at the box stores, multi flora rose is abundant, if you have access to a saw, cut your own shafts from a preferred material. And yes, if you can make it to MoJam in Marshall, you can see all types of shafting materials, and probably shoot any type you want. Tat way you can figure out what you like.
What part of KC you from? I live in Warrensburg, about 40 miles SE of KC.
Neal