I have roommates, so mine are in a shoebox under my computer desk. I know they're not going to go snooping through my things, but I prefer something discrete. They get the most use in front of the computer, making the nightstand not the best choice.
Well, I'm not sure you'd classify it as hiding, but my partner and I neatly pack our toys away in our toy bag. The toy bag lives at the back of the closet. It's less about privacy (though that does factor in, I wouldn't want to traumatize my pet sitter) and more about convenience.
I have a Devine box I keep in my nightstand...not really hidden...more like safe keeping...some of my friends have had their eye on my toys!! L0L
I've always wondered where it is that people hide their naughty toys and other things. Where do you hide them?
I have most of mine in a homemade bag under my bed. I said most of them, because I ran out of space (it was a tiny bag, anyway). I just got an EF tote a la carte so I'm planning on relocating my stuff there.