I'm only able to speak for myself, and the answer is clearly
"entertainment and enlightenment."  I love the breadth *and* depth
of discussions here.  For instance, Bob Conant wrote:

> [snip] The point of all this is: a lawnmower gets tough duty and is
> expected to last a long time.  Maybe the material used is something
> that could be adapted to a coin piano drive or perhaps the entire
> driven wheel might be used.  Just a thought for those in the process
> of restoring one of these things.

Where else could I ever learn this stuff?  I want to try this with my
3-1/2 HP Murray power mower (scale available on request).  I suspect
that the only practical way to mount the lawnmower to the instrument's
chassis is vertically; but I'm afraid I can't keep the air filter oil
sump from leaking 30-weight oil down the back of the Mortier.  Perhaps
that's what the "room-temperature kangaroo skin pouches" are used for,
which John inquired about.  And the exhaust may be as beneficial as
ozone...  Just wondering.

Pete Woodworth, San Luis Obispo, CA

 [ Ah, but read what Don Teach says (below)!  ;)   -- Robbie