Get those plastic toothbrush holders that walmart sells for traveling and line them with felt. the round ones fit the 480's PERFECTLY. Both myselrf and Steve Toney aka tonedeaf have done this and its an excellent and LOPRO way to transport your mics.
Yup, works nicely.
And also these toothbrush things are the right size to slide right into the front pocket of the RM-Multi. That way, two of them take up the least amount of space possible in the bag.
As far as felt lining goes, I bought some felt, but turned out what I bought was too thick so when I put it in the plastic toothbrush holder, it ended up being too tight a fit to fit the mics too. Rather than buying a thinner grade of felt sheets, which I might do someday, I just stuffed some foam down each end of the toothbrush holder so that the mic kinda sinks a little bit into the foam when the toothbrush holder is closed. That keeps the mics from rattling around inside the plastic holder.
BTW, I had to go to a couple of Wal-Marts. They all have the toothbrush holders, but the first one I went to only had a square type that were I think $1.29 apiece. These work, but aren't quite as good a fit as the round cylindrical shaped ones that I found at the second Wal-Mart and the round ones are only 50 cents each.
PS: Find the section of Wal-Mart that sells the sample size or weekend vacation size stuff...like the mini-deoderant cans, mini-toothpaste tubes, etc...usually not to far from the razor blades, deoderants, prescriptions, etc. After looking around WalMart for 1/2 hour, that's where I finally found them. The toothbrush holders were in another one of the rack bins, same as the mini-deoderant, mini-soaps, mini-shampoos, etc.