My daughter (8) has been obsessed with Pokémon cards for over a year — pulling, trading, sorting by rarity, the whole thing. Her little brother wanted in too. So instead of just letting the hobby sit in binders, we turned it into an actual business: Mystery Packs of real cards from their own collection, hand-picked by them (not machine-sorted, not bulk lots).

A few things I learned setting this up that might help other parents doing something similar:

1. Kids are better curators than algorithms. They know which cards are actually cool to a kid buyer — holo rarity isn't the only thing that matters, character popularity matters just as much.

2. Start with what you already have. No need to buy inventory — duplicates and lower-tier pulls from their own collection became the first packs.

3. Let them set the price. We priced the first Mystery Pack at $9.99 — low enough to be an easy yes, high enough to actually be worth their time.

4. A shop chat > a fixed catalog. Instead of listing every single card, we set up a chat where buyers can request specific cards and get a quote directly from the kids.

It's a small shop, but it's theirs — they picked the cards, we handled the storefront. If you've got a kid with a collecting hobby, don't underestimate turning it into a real (tiny) business.