This is a temporary/fun fix, for high quality optic protection see Amos lens protector thread:
Amos' amazingly awesome Lens Protectors
Today I broke my girlfriend's air dryer when it fell.
picking up the parts, i noticed there is a grid in the front end:
and oh surprise!
guess what I'm going to do to avoid this:
I'll post the results...
do you think the grid is too thick for some use on a scope? I'll try.