People love money and some people love a good mystery.
1: Get a bunch of cheap USB flash drives and get the bitcoin logo put onto the side. 2: Put a wallet.dat file on there with like 1/4 a bitcoin. 3: Read "readme.txt" explaining that there is money in data form on this drive and how to get at it. 4: Leave drive somewhere public where "normal" people can find it. 5: Local and national news picks this up as a story and gets more people interested in this new form of currency. 6: Profit. Well.. for some of you. =P