That is such a great use of corkscrew willow. I grow tons of it btw if you need any. I got a bunch at the HJC flower show a few years ago and it rooted and grew substantially very quickly. I have several huge trees. Matter of fact Steve just cut off a large limb hanging over the driveway the other day at least 8" diameter and 20+'. He uses it to make his canes -
Canes of Corkscrew