Here are my new business cards, and they look like tweets. How cute and useful! The cards are 1"x3" and are easily customizable. Seriously, it is so easy to make your own cards that the most complicated thing you'll do is upload your picture.
For my cards, I used my Twitter picture to keep the branding consistency, and pasted a snippet from my Twitter bio. On the back, is all the regular business card info including my Twitter address.
There are two places, you can buy these style of skinny cards. I got mine at Zazzle.com.
I really like the cute little holder the cards come in. I was also amazed at the speed in which the cards were made. I literally ordered the cards on Wed at 6:30pm. They shipped Thu at 12:43pm, and they arrived UPS ground Fri at 11:30am. I live close to the plant so that explains the fast shipping, but wowza, I could not believe the printing and packing part literally took less than 24 hours.
Another place to order the tweet looking cards is from Moo cards. Who I have make my regular size business cards which feature my food photography. Moo makes wonderful cards, but they are based in the Europe, so shipping time and costs differ from Zazzle.
Creating business cards that look like tweets is a great way to build your Twitter following in the offline world especially with those who don't know what Twitter is yet, or what you're doing with your tweet stream.