We had one of our games returned but they had damaged the game cart. 

This model allows you to take the small square chip inside the cart and give it a new home with a new casing. This will allow you to be able to play your games again! We did this for our Pokémon Shining Pearl game and it works! It's playable once again. 

Just place the game with the pins showing through the holes, apply a tiny amount of superglue in the top area, and then press the two halves together. We've confirmed that our model works to go into the switch! This is our fourth version, the first version didn't fit the game, the second version got stuck in the card reader (damaging it, so we had to repair that piece), the third was difficult to line up for gluing but worked, and this version has guides to help you glue it together. 

Here's to reducing eWaste!

Note: As we have mentioned to folks in the comments, if the thin guides on the backside don't print 100% perfectly or warp, it will not work and may damage your card reader. See example image: