It works great for other phones too, I also did one for an old Nokia and a Sony Ericsson, and why not ?! :)
Step 1: What do you need...
the phone charger
some soapy water
If you are not familiar with sugru, you can find out more on our website - www.sugru.com
Step 2: Open the sugru sachet
Knead the sugru in your fingers for half a minute, this helps the material work better.
Tear the sugru into 3 pieces; for this hack I needed 2 large ones and a small one.
Cover your phone in cling film, this will make sense a little later.
Step 4: Get the shape right
Pop the third piece of sugru onto the top of the charger making sure it sticks out a bit.
Once the sugru is in place, it's time to get the shape right.
Gently touch the sugru repeatedly to tweak the shape, don't panic, you have plenty of time.
Step 5: Create the perfect impression
1: To help with this process, rub a little soapy water onto the cling film you wrapped around your phone - soapy water works as a release agent for sugru preventing stuff from sticking to it :)
2: Gently press the phone into the sugru. Be careful, sugru will still be very soft, so be gentle so as not to deform your brackets too much.
After I completed this I realised that this step is not that necessary, so you could skip it if you liked. Take a look at the Sony Ericsson version in step 8 :)