[simonveal]

My most successful Sugru fix was the following.

I had two non-working phone holders for my car. One was a good fit for my phone, but was supposed to stick to the windscreen and didn't stick properly. The other was for an old phone, but it fitted well in the air vents.

Using sugru I was able to join together the parts from each contraption into one which fitted nicely in the air vents but held my new phone.

For the right job, Sugru is pretty useful stuff.

[iolo]

Adding to that, it is very good for wrapping around the ends of cords like chargers and headphones to stop them fraying (Apple products were very prone to this for a while)