Here is a physical manifestation of a dogecoin (http://dogecoin.com/) made to house an embedded nfc chip. Use the nfc chip to direct smart devices directly to your dogecoin/litecoin/bitcoin/etc. wallet for receiving payments or checking your balance! To the moon!Print the two halves using 100% infill, and a layer height of 0.1-0.2mm You may prefer the look of concentric infill on coin-shaped objects. Place a 30mm NFC tag into the half of the coin without the D. Example: http://www.amazon.com/dp/B00CE3IC74/ref=wl_it_dp_o_pd_nS_ttl?_encoding=UTF8&colid=GBQ3WNFVJ5IL&coliid=I3KHRSW6T0AZFL Put the halves together and glue them so that the tag can't move or fall out.