Something I want to do is become a scannable art gallery. I plan to get cybernetic panel tattoos, and I think it would be extremely interesting for each panel's "Access Port", or what have you, to have an NFC implanted under it so it would actually be scannable.
It would take you to a web page featuring vector art of the piece, a high quality photo of the piece, the artist's name, time taken, when it was done, where it was done, etc. I've never seen it done before, but it's also super expensive in both directions, so I'm just gonna try and get it done with what means I can.
Ideally, I would get a design, work out where it's going, talk about having an implant injected into the location, and then work out how to design the scannable area. After the injection site heals, the tattoo would be done.
Also, yes, I'm referring to Dangerous Things.
Initially some simple RFID/NFC chips. If I can get one, I want to have a temperature chip implanted. Would be nice to know my exact temp when needed.