That middle piece, I'd leave it sitting around for a few months, at least, and let your mind work on it. You could come up with something quickly if you had to, but I think a best idea will emerge if you let it gestate. Just an idea.
The far right one I already have a idea for it, adouble bowl pipe. The darker one I'm aiming for a Dublin with a long shank and silver windcap. The left and middle I'm still contemplating.