The Mini Cooling Fan Pen is one gadget that targets adolescents and tweens, featuring a tiny dual-blade fan attached on the opposite end of the writing side of the pen. You can now keep yourself cool with a mini gust of wind while trying to think of the next sentence in your essay, to the envy of others. Of course, should your coffee be too hot to sip on, you can always use this to cool things down. I must say the idea is pretty interesting, but chances are an executive will probably want to avoid carrying one of these while attending a board meeting. The Mini Cooling Fan Pen measures 14cm x 1cm x 1cm and retails for £4.99.