It's a new material which looks and feels like Playdough in your fingers. It comes in variety of vibrant colors and can be molded into a million different shapes. But it's after you shape it that the magic begins. simply let is sit for 24 hours to "cure" and it turns into a firm, almost rigid form of rubber. It will adhere to most surfaces and is waterproof and durable.

I used large marble-sized ball to create a mic holder for my FT-100D. It's looks good and works well. The Sugru website has hundreds of creative ideas of how to use the interesting stuff. There are a couple of downsides.
Once you open the Sugru package, it starts curing, which means you have to use it or loose it. for that reason, they sell it in small, single-use packets (about the size of a bite-size miniature candy bar). And it's not the cheapest fix. It comes in a pack of three for $12 or eight for $22.