Next time, how about I design & 3d print some branded drink coasters with embedded NFC tags that can include eCash vouchers, smart card data sharing, or LNURLp functionality. I just got my 1st batch of 100 ntags with Boltcard integrations to enable Membership bearer wallet/IDs.
Let me know if any of this interests you. Just send me the graphic for the coaster, with up to 4 colors, & I'll work up a 3d model for your approval.