I know some users buy a fish aquarium pump and hose to dry out a platypus, but I blow some air into em to get them "full", then prop them up on top of a register.
I don't really mind dust getting into them (if any)…I just want them dry and I don't want to store them in the freezer, so this prevents mildew/etc.
When ready for camping, I just rinse them out real quick.
