Introducing the world's thinnest ball point pen...this pen is so hot it's been flying off the shelves in Japan! The Signo Bit is the latest contender in Japan's race to make the thinnest pen. The tip is so small you can write words on a grain of rice.
You can buy the same here >> World's thinnest Pen
I got this information from Ramit Sethi's blog, An absolutely must read blog for those who really want to take care of their finances.
Read Ramit's interview with Lily Chu, PCOW Inc. who is a co-owner of www.JetPens.com, that sells these pens. A superb interview and hopefully lessons for everyone of us.