OK, here is a little list of what I like to use. Some of the items might be repeated, be warned:

Black marker, thick stroke: I will write things on her body, or order her to write on herself things like "yes, Sir", or an arrowhead pointing to my exclusive porperties along her body with the phrase "for My Master only".

Candles. Ideal for waxplay, specially if we decide to use close-up dripping where she will not only feel the hot drops but the heat ofthe candle itself as well.

A glass, filled with her favorite drink, mixed with my elixir after she has obtained it using her mouth.

Strawberries. I like to use three of them, have her on knees and elbows with one strawberry in her pussy and one in her mouth. If she loses her lower strawberry I will force the third one there, but not with my fingers. If she lost or destroyed the strawberry in her mouth, I will place the third strawberry in her mouth; again: followed by my phalus to make sure she doesnt make the same mistake next time we play with strawberries.

Balloons: I just love to see her face when I increase the volume of air, while the baloon invades her body. Careful: you must use good Swiss chloroprene balloons, ordinary latex balloons might hurt her inner skin if you inflate the thing too far, or you do it to suddenly. You can add up the spice: insert some caramels inside the balloon and have her go to the store across the street (to get you cigarettes) with the thing inside of her. The caramels will cause extra movement and they even make noise when bumping into each other, she will walk slowly in order to not to embarras herself.

Well, there is more that I might add at a later moment... Good thread!