Happy to share this interview with you! Alex has been working for some time on using augmented reality to interact with physical coins. Alex's company Drop The Coins has created a whole experience centered around a silver coin and it's getting a lot of attention from young and old. You should definitely check out their website and you will see a whole other way to collect coins.
https://www.instagram.com/dropthecoins_ar/
www.dropthecoins.com