You can't just blow out the crotch, you have to know what you're doing. If a hunter can do it, I sure can. The sun and salt really fade jeans, and we all know that when you catch a fish, it loves to squirt all kinds of stuff on the fisherman and his clothes. Jeans are useful places to wipe your hands of bait, slime, sunscreen, squid ink, and miscellaneous, all of which have their customizing effect. It is also real easy to make those holes in the jeans that are so prized these days.
Hooks can do that about as good as buckshot.
This idea could really work out. Please apologize for me and tell them it's business. Most people who have a good idea like this would keep it to themselves and selfishly make all the money. Just let me know what size jeans you want to work on.