I see both sides of it.
WWE is a big corporation. They're gonna make money off anything or anyone. And it's a product design that is cheap and easy to make and isn't copyrighted (or trademarked or whatever the legal term is for that). Just funny it's a 50 cent bracelet they're charging $10 plus shipping for.
But it's also her design. They don't owe her anything but at least do something like get her VIP tickets to a show and backstage passes to meet superstars.