LOL! I should have known.  My husband drives a race car as a hobby and
we travel a lot during the year.  One year, about 10 years ago, we were
on our way to Memphis, TN and stopped to get gas.  In the rest room was
a condom dispenser as is common in public rest rooms.  At that time our
race car was painted with a Kawasaki motorcycle paint scheme which is
green with blue numbers.  In the condom machine were green, glow in the
dark condoms.  Being in a silly mood I bought a package.  Later that
night we got to the motel we were staying at and one thing led to
another and DH put the condom on but we had forgotten to turn off one of
the lights and he had to get up to turn it off.  When he did all you
could see was this green penis moving across the room.  This turned out
to be the *best* form of birth control imaginable because I couldn't
stop laughing long enough to proceed with the deed.  But it seemed that
whatever the glow in the dark substance was it transferred easily to
anything that touched it so that when my DH touched me he left green
fingerprints on my leg, breast and stomach.  It didn't take long for me
to think about what else might turn glow-in-the-dark-green which led to
thoughts of the joke about the woman who used her daughter's washcloth
just before visiting the gynie and it turned out the washcloth was where
her daughter was saving her cosmetic glitter. Needless to say, the
condom had to go before things progressed but the memory was priceless
and hilarious. (The telling is funnier in a less public forum :))

Julie