It might be my imagination, but I see more girls (and some guys) wearing gold hoop earrings....
It seems that bigger is better - sometimes 5" diameter so that they kinda rest on the shoulders of the wearer. Of course, people don't know what size to get...
AH! I have the solution. The size can be determined by the size of the wearer's areola of the nipple! The average man's areola is about 1" in diameter. The average woman's is a range of about 1-1.5" - so only gals with big areolas can wear big hoops!
Now, I need a snappy phrase to sum it up. Something like:
"Collar does not match the cuffs."
"Carpet does not match the drapes."
"Shoes should match the bag."
Or, how about:
"Hoopsies should match the boopsies!"
"Rings gotta match the ting-tings!"
"Nuttin' bigger than the dual buttons."
Since many hoops earrings are actually hollow tubes for weight savings, how about:
"The tubes gotta match the boobs."
And, of course, the same rule applies to ear gauges.