What I have done, which works well in an upstairs flat, drip dry by hanging over the balcony - tying bungees around the feet of course so the downstairs neighbour doesn't get a free drysuit. As this doesn't allow the feet to fully dry, when the rest of it was dry, I turned it inside out and directed a small fan into the booties. At this point it is lying down on my living room carpet!! Can you tell there is no Mrs Far_X anymore

I kept the legs open (not what you are thinking!!) with conveniently placed magic markers. Worked like a treat and you can tell I watched Blue Peter as a young 'un.
