There's this scene in the Hitchhiker books where one of Zaphod's mates discovers the planet of the pens, where pens from this universe escape to through micro-wormholes to live out a civilised existence. Apparently the friend ended up as a driver for a family of biros. Not many people believe him however a little later Zaphod had a very successful second hand pen business. If there was a press stud planet I would thermo-nuke it into a dessicated cinder. Read more »