I use one of the DuBro wall racks, but make sure to use some foam pipe insulation over the thin metal posts to avoid them digging into your plane's surfaces. I have used string to hang them from the garage ceiling as well, but this was a pain for removal and re-hanging. I need to come up with a wood or pvc hanger to mount from garage ceiling for a couple planes that are too large to bring in the house. Ideally, you should keep them indoors to avoid exposure to temp and humidity extremes (like we have in MI), but if you don't have much room, you do what you gotta do!

Pilgrim