Sugru is an air-curing rubber that can be formed and shaped by hand, sticks to most surfaces, cures to a tough flexible silicon overnight, and is stable at -60°C to + 180°C. Strong, flexible, waterproof and durable, it can be used for a multitude of purposes to adapt, modify and repair. Its uses are really only limited by your imagination. Once cured it can be removed with a craft knife and the residue removed with fingernails and tissue paper if required.
Hard to explain all the uses so have a look at the clip after the jump, or visit the Sugru website. Available in multi-application packs from £7.50 ( $12 ).