Ah, I have the exact same problem for many. I use a wide variety of storage methods which also includes some assembled on soft quarter inch iron rods bent into hangers. For the hi wing banded ships thats a problem if you do not rotate bands very often. So what I do for the few that fit that scenario and its been pretty successful is to not us the stereotypical modelers #64 bands and go to a band that hardly needs any stretch (minimize the stretch) and just use more of them. The ones I use for this are marketed at our big box Walmarts as book marker bands in the stationary section. They are 1/8 inch square and seven inchs long.

Since the stretch is greatly reduced they last a great deal longer and when they do start to fail they will give a warning since there are more of them you will find one on the floor for some time even days before anything catastrophic happens. When I go to fly one of those airplane I just replace the bands with news ones of the appropriate type and save the long bands and even reuse them if
there are no check marks on stretching to twice there length. The flight bands for that day I pitch in the bin.

John