Sounds
I do have sounds in all possible sizes and with- or without electro. My experience is that sounds do not hurt you, as long as they are too small, so lets try try a couple, starting with the smallest until it starts hurting.
Other CBT devices
CBT is really something I always like to do. Sometimes I use my bare hands (believe me - I love to use my hands), other occasions i use one of my many CBT torture devices. click on the picture if you want to see some of the devices and techniques i use. Some pictures in this gallery are extreme.