This is what I, in one of my moments of insanity, purchased for @domsigns for Christmas. Just in case you are unsure of what it is, think of a bed of nails, but in this case sharp needle-like points embed in leather. It is a beautifully crafted thing and was made to measure (to fit perfectly across my ass) by the very talented Saint Leather.
Its purpose? To be laid delicately across my bum, needle side down, while he flogs me. So far all I have done is perch gingerly on it and even then those spikes, as you can see, did their best to bury themselves into my flesh with the full weight of a flogger behind them they are going to be even more determined. Just the thought of it makes my heart race. I am terrified of it, the points are much sharper than I was anticipating and yet if I am totally truthful when I look at it I see the promise of marks, vicious bloody marks and despite my fear, or maybe because of it, I find myself longing to try it out and if his evil grin is anything to go by, he has similar feelings.