It's amazing how much a simple pingpong paddle just plain stings... and is therefore somewhat reviled... and is therefore somewhat irresistable.
I really like it while being straddled as my hands are free and my arms are long enough to reach either cheek.
And straps and belts have a lot of appeal. Especially as they can readily be employed while actively fucking your sub while they are on hands (or shoulders) and knees.
Over-the-knee? Nothing like a bare hand to feel the curves and warmth.