Please, five icons for NFC (see: http://en.wikipedia.org/wiki/Near_field_communication)
Icon 1: the NFC logo.
Icon 2: the NFC sign (indicates a device with NFC capabilities).
Example: (without the "NFC" text, but with the 'N' in it).
Icon 3: a NFC checkpoint where you can checkin/checkout with your subscription card. For example, in stadiums/stations (soccerstadium, train station/bus station).
Icon 4: a NFC checkpoint where you can buy or checkout something (groceries, ticket, etc).
Example: (but not drawn angled) or this one: (Icon 4 should tell the user/reader that you can pay with your phone, either the checkout side or the mobile side is visualized in the icon)
Icon 5: alternative NFC logo.
Example: (but without the 'N F C' text and with the nfc-character-logos quite next to eachother with a little bit of space between them). The last icon can be used for animation too when they are separated from each other, what I mean is: first show the N, then the F, then the C and finally the complete NFC logo. All on top of each other. I think the NFC set is complete when you have these in your iconset.