As you probably know, a whisk is a kitchen gadget used for mixing. As sex toys, they may be quite interesting. There are many accounts of women enjoying the pleasure of opening their vaginas with whisks. One can even find pictures on the internet of women, and I assume men, putting whisks into their anuses.
I suppose one has to be careful to avoid pinching where the blades of the whisk cross.
A person doesn’t necessarily have to press the whisk into themselves. I’ll bet just running the blades lightly over a vulva, scrotum, or along the ass crack may be quite erotic.
Does anyone know of something like a whisk that could be pressed into a peehole? Along the same lines, notice the end of the whisk handles. I’ll bet some are just the right size and shape for urethral stimulation. Like all urethral play, everything must be sterile and have smooth edges since the urethra is quite prone to tearing and infections.