Gombo,
If you go look at the Apple site, there are lots of silicone sleeve type cases. I have a mini and my sleeve/case has a clear cover over the screen. Works great. I have taken the iPod to the beach, put it in a backpack and had it knock around, etc. No scratches. They also come in colors so my wife has a yellow case, my daughter a pink one and so on. After finding what you want in the apple site, there are lots of other places to find it cheaper.
BearBath