This is a thread for companies and people using audio products in imaginative ways.
I have two examples to start the thread, both from Japan, both I have demo'd.
1. Special Weight Loss Device from Japan.
It's a circular platform you stand on with a display/controls/hand-hold in front of you and it promises that just 30 (or however many) minutes a day and you will lose weight!
What is it? Well, the thing you stand on turns out to be a large subwoofer and it supposedly sends low frequency waves through you at some sort of fat-melting frequency. You definitely feel some below human hearing range vibration.
2. Special massage device from Japan... no, not the one you're thinking of.
So, there's a massage device from a former engineer from Aiwa where you listen to special music (a bit new-agey) via headphones and the bass and sub-bass gets separated out and played via a special padded sub-woofer, which is used as a massage tool. Yes, that's right: You are massaged by a sub-woofer or woofer, at least. It's an okay massage, actually, done in time with the music.