Just one??? Oh, boy. Well, if it had to be just one, I'd say it'd be this one:
This is what I call "The Professor." A pipe I had custom made for me by Todd Bannard (Sasquatch, in the forums), in Canada. He makes amazing pipes! And he spends a lot of time and TLC on the stems of his pipes, which are all handmade. You can check out some of his work on his website briarsweatandtears.com
Best of all, she smokes even better than she looks.