If it takes around 5 minutes per card (because you can order multiple cards at once), then making even 2 dollars a card is $24 an hour, for something that isn't very complicated and doesn't feel like work. I've also at times resold them myself (with the correct capacity, and as-is), and made money that way. Some people might also like to have a fake card for fun. (It's actually quite cool the way it's hacked.)

Besides, the title was Post ridiculous munchkin ideas.