sugru: a clay-like that hardens to silicone

sugru sounds like a small miracle for people who like to build stuff.

From the sugru site:

sugru is like modeling clay when you take it from its pack. Once it’s exposed to air, it cures to a tough flexible silicone overnight using the moisture in the air.

sugru is designed to stick to as many other materials as possible. It forms a strong bond to aluminium, steel, ceramics, glass and other materials including plastics like perspex

There are a ton of ideas for how to use it in the sugru blog. Here’s how somebody used it to fix a pair of scissors:

The down side? They are currently sold out. But you can sign up for a mailing list or follow them on twitter or facebook from their buy page.