File this under 'questionably useful, but darling nonetheless.' ZviZvi over at Instructables needed to update an outdated product for his Industrial Design portfolio, so he took grandpa's old rotary phone and implanted an Arduino soul. With an involved bit of slap n' solder and a WiFly shield, our enterprising Israeli modder transformed this once-luddite tech into an emoticon-tweeting wireless terminal. While the phone's LED-lit dial is only capable of outputting ten heartwarming expressions, that's still ten more than any rotary phone's ever had before. Sure, you could always use that ever-accessible laptop (or smartphone) for your Twitter needs, but where's the fun in that? Per usual, budding inventors can tickle their Emo in the source link below.