Kind of reminds me of a joke I heard many years ago:
2 guys are at the beach on the last day of their vacation. They've been tanning everyday for the last 5 days and have gotten pretty dark, except for where the swimsuit covers them.
One of them turns to the other and says "I hate not being able to get an all-over tan! I'm going to bury myself in the sand and just leave the white parts exposed so I can even out the tan." His friend likes the idea and the both cover themselves up with sand, leaving their penises exposed.
After a little while, 2 old ladies come strolling down the beach when one notices the two penises sticking out of the sand.
She turns to her friend and exclaims, "LOOK Myrtle! Remember what we had to do to get one of those and NOW they grow wild!!"