Today we find thumbtacks […] No office, classroom, or studio is complete without a tub of tacks. The humble thumbtack was invented in 1904 as a drawing aid by a German clockmaker named Johann ...

Geek up your cube with an old keyboard and a bit of hot glue. It only takes a few minutes to construct these little thumbtacks but you will get hours of. TechCrunch Desktop Logo TechCrunch ...