This is our very own gyroscope.com mug. If you ever wanted a dishwasher-safe mug with pictures of a V-twin engine, gyroscopes and a Stirling engine then here's your chance! More information about the Gyroscope.com mug

This is a battery with a difference. It has a built in USB connector which allows it to charge wherever there is a computer. There is no need for a charger, simply pull the top off to reveal the USB connector, plug into a USB port to start the charging. It has a LED to indicate the status of the charge. More information about the USB Cell - A battery with a USB connector (AA)

These unique pens can erase their own ink cleanly by friction-generated heat, leaving no debris. Write a message, if you make a mistake just use the non-writing end of the pen to erase the ink. It has a fine 0.7mm tip and the ink comes in black, purple or blue ink. More information about the Erasable Pen

This is a very interesting pen. It writes like a normal felt tip pen but the ink is invisible. However the top of the pen houses a miniature UV LED torch that illuminates the ink. More information about the UV Invisible Ink Pen

This is a very rare Russian KGB disappearing ink spy pen based on a secret formula developed by KGB scientists during the Cold War period, and has been recently adapted into a modern gel pen format. More information about the KGB Vanishing Ink Pen