Has anyone tried making a simple TCG using old cards (like Garbage Pail Kids)?

Hello,

As the title says, I'm curious if anyone here has ever experimented with creating a simple TCG or custom ruleset using existing, non-gaming cards (such as vintage Garbage Pail Kids, old baseball cards, retro stickers...)

On idea would be sliding custom stat sheets or text inserts into card sleeves with them.

I am curious about the idea of giving a second life to nostalgic, non-gaming collectibles by inventing a lightweight rule system for them.

If you’ve tried this, what game did you base your rules on (e.g., simplified Magic, War, custom stats)?

Would love to hear about any projects, rulesets, or ideas you might have!