They smell like wet dog. The acid has been completely removed, is dilute to begin with--while they were in the "pickle" they sat next to the heater in the living room in a bucket with a lid, and didn't smell at all. The lid was important to prevent spills and keep the cats out of it. I have a clumsy family.
The hides really only need to drip over the shower for one night, after that they don't drip anymore, so you could hang them anywhere you could hang a damp towel--Not grandma's heirloom rocker, or anything with an unstable finish/upholstery, but a curtain rod, walk in closet, the garage, etc.