You can also purchase NFC stickers. I recently did a slightly similar project: https://chrisbergeron.com/2022/01/08/time-tracking-with-a-di...
This unlocked something very special for us. We have a card for each parent, grandparent and many others reading books to our 3 year old. It's very easy to link a blank nfc card to a playlist that corresponds to the reader. He loves picking a family member after we finish books to read more while he falls asleep.
1. Use NXP TagWriter to format card to NDEF format. 2. Use Smart NFC tools app to copy from existing MyYo card to new one. 3. Using the Yoto app, Play the playlist on the target Yoto. This will trigger the tracks to download onto the YoTo. 4. Make sure all tracks are downloaded onto Yoto before inserting new card.
Smart NFC tools: https://apps.apple.com/ca/app/smart-nfc-tools-read-write/id1...
NXP Tag writer: https://apps.apple.com/ca/app/nfc-tagwriter-by-nxp/id1246143...
After a few years now with two kids using Yoto, however, I think it is a little overkill to go this route and the reduced friction of using Yoto’s own cards makes it worth it, despite the cost. But this may help others who use them differently than we do!