There is already a fantasy currency called Kudos in your Taler Wallet-App (iOS, PlayStore, F-Droid). If you want, you play around with it. Inspire a friend to install the app as well. So you can transfer Kudos form one wallet to the other. Just via Messenger, E-Mail over a distance or with qr-code or nfc if you are sitting together.
How it works for you? Do you have questions? For me it works pretty well. But I haven’t tried nfc with kudos. Do you?