Getting the tar out of one's pipe is messy and unnecessarily difficult. The reason for this is that the tar is thick and viscous and it's stuck in a skinny little tube.
I saw on TV how a South American blow-dart tube was made, and I thought, Aha!
Split the tube lengthwise, re-attach the two halves, and you have a two-section pipe stem which can be taken apart so that the tar can be easily scooped out.
The two halves could be held together by a dove tail joint.
Am I explaining this well enough?-- unfettered, Sep 08 2009 Clamshell (razorshell?) pipe, I quite like it - glossy walnut with elegantly inset miniature brass hinges - the tar itself might help maintain a close seal - which would be paramount for a successful and satisfying pipe action.-- zen_tom, Sep 08 2009 random, halfbakery