Boing Boing developer Dean Putney found these great advertisements for Pilot's Extra-Fine ballpoint pens. They're so thin you can draw these intricate tattoos on Lego people!
I'm a contributing editor here at Boing Boing. I also have a blog (TokyoMango), a book (Urawaza), and I freelance for Wired, Make, the NY Times Magazine, PRI's Studio360, etc. I'm @tokyomango on Twitter.