I keep an Odoreater shoe insert inside the featherweight case all the time now, as it also serves to cushion the pedal. Dual-duty odoreaters!

According to Martha Steward you should add balled up newspaper to your bags to get rid of the odor. I have never tried it. But it would be a cheap thing to try.

with old books and magazines (and a few times, cloth) i've used a bag of clay kitty litter. i put the object into an old cotton pillowcase, and put it in a smallish bin, pouring a little underneath, on the bottom of the bin. then, i pour enough litter over and around it to bury it, and leave it for several days. unless you like things "perfumey", use an unscented litter, and don't use a pine or corncob based one. the clay absorbs the smell, but i'm not sure if the other ones will. pine litter can have residual resins in it. good luck!