I love a challenge, especial if it is not offered as a challenge. For example, another craft person said in passing. "Do you think that you could make an egret whistle?". Well, I am not sure that I have it yet, one of the birds looks more like a heron than anything, but the challenge has set me off in yet another direction. I think that I will try making a chess piece knight whistle now.Yes, there is a connection, but it is structural rather than thematic.