Instead of a business card, I'd love an ultrathin pleasure card you can refill with virtual beer and virtually drink! You could input your weight, and it could track you BAC!

I made "PalmJoint", a beamable Palm pleasure card for CodeCon 2002, when everybody was beaming their contacts around by IR at conferences, I would beam an interactive doobie simulator a bunch of people could play together in a circle. Each person gets their own doobie, and you can have contests to see who can virtually smoke theirs the quickest, or keep it lit for the longest time. I never get around to implementing an IR token passing network:

https://donhopkins.com/home/images/PalmJoint.png

https://donhopkins.com/home/PalmJoint/Src/PalmJointMain.cpp

Some conferences of the era had kiosks with IR LEDs that beamed out a Palm app with a conference map and schedule, which would have been great to hijack for beaming out PalmJoints instead.

Ha! That's pretty cool.

My first thought with this card was that it could be "gamified" into something that kids would probably love. A clique-y, social thing where kids could "pour" some of their fluid into another's card, with NFC or something. User preference colors that don't change when "poured" could help indicate how many different people have interacted with your card.

But enough spitballing. There's no killer idea there. Just something I'll be amused to see show up as a value-add for some other kind of toy, or whatever.

I love it; I bought a secondhand Palm just before smartphones became a thing for cheap and had a lot of fun with it. I wonder if I still have it somewhere and whether it still works, I haven't seen it in ages though so probably not.

small ad-hoc networks like that with IR and early bluetooth were a lot of fun.