rough in: good idea but would the open end of the cone cause havoc when mixed with the surf - I'm thinking the retreating water would want to suck the basket off the wearer - as opposed to the wave pushing the unperferated basket bottom & the wearer up onto the beach...orsomethinglikethat.
source: Charrett might not be the source but one of thier customers would be - Strato or some other high volume/high end printing shop...what specific kind of paper are these things included with again?
Did you ask the mfgr directly? Never know, might be cheap enough to buy a bag of 'em and do a kit a la Blados Crease Fly...
differences: I knew that - there's not one that has an earing or tatoo.!