I spent ages looking for a cheap way to stop cymbals rubbing against each other in my soft case, and then I found these.
Cheap (just over a fiver), easy and simple:
http://www.lakeland.co.uk/25753/Anti-Scratch-Pan-Protectors-Red-3-Pack
Also available in Blue:
http://www.lakeland.co.uk/22314/3-Anti-Scratch-Kitchen-Pan-Protectors—Blue
And in different sizes (probably too small though)
http://www.lakeland.co.uk/25754/Anti-Scratch-Pan-Protectors-Mixed-4-Pack
This Music 