You want to write on a grain of rice? Take the world's thinnest ball point pens from Signo and do it.
The Signo Ball Point Pens have a width of only 0.18mm.
Signo Bit pens come in a pack of 8 colors (orange, light blue, violet, pink, red, black, emerald, and blue). Apparently they are a huge hit in Japan.
JetPens sells them for $25 in the US. (Thanks Tim H. for the Tip).More hot gadgets in our Gadget Gift Guide.
Don't Miss: Today's Electronics Bargains at Woot.com