I'm pretty open about my toy use with my family. Not my dad's parents (Jehovah's Witnesses), but pretty much any others. They're a rather sexual bunch and some have toys. I'm just tired of my mom getting drunk and saying that everything I hold in my hands is going to be used as a dildo or butt plug.
I don't really hide my toys. If you were to look at my book case, the only obvious things are my three vixen creations (Leo (orange and batty), Raquel, and Maverick (tie bright)). Other than that, things are in drawers (that hold nothing else), suitcases, or medium, stackable bins.
I don't know what I'm going to do when our toddler gets older. Right now he knows that they're Mommy's and he isn't allowed to touch anything in the bookcase or nightstand. He also knows to "just walk away" (that's what I tell him when he starts to go in to that corner of the room).