I've tried it all... last time I thought I had them, and I used Vaseline... all 5 ASFs ran up and licked it off with their wee tongues.
Ten minutes later (squeek, squeek, squeek). That noise gets in my head and messes with my dreams.
I bought a few silent wheels, great for the mice and the juvies, but the adults chewed through them in no time.
Grrrrrr...
Bruce