[sudo-discuss] make your own RFID tag

[Jake]

i mean, the real things are only about $2 and an attiny chip is $1, and 
your time is surely worth something, and you should just get a numeric 
code to get into sudoroom, which doesn't require any matter, but in case 
you decide to make an RFID tag yourself, here's how:

http://scanlime.org/2008/09/using-an-avr-as-an-rfid-tag/

i believe this will work with the sudoroom RFID reader.  but why bother? 
you can just buy a tag or get a code you can type in.

-jake