This is an interesting gizmo, the WAKMAH (stands for Water-closet Aperture Kinetic Mechanical Activation Handle, though I think personal sucker would be more catchy). Working on the same principle as the suction cup this little gadget is a handle you can take anywhere and attach to any smooth surface.

Using this little device can make journeys on public transport a bit easier as you always have your very own hand hold.

This gadget has various other uses too (taken from the official site)

• Door Handle Avoidance
• Dolphin. Seal or Whale Riding
• Surfing aid for beginners
• Child’s toy

You can check out the manufactures site here and buy one for just under 4 pounds (about 7 dollars).