My wife and I live in the northeast which means the warm weather has already started to depart and the nights are getting colder. With this brings on my wife’s biggest complaint, What a cold "shock" it is when we first begin using one of our dildos. After experimenting, we are now exclusively using silicone as these seem to warm up quickest and holds the heat the longest. Has anyone ever come across a dildo that is self heating? We've tried warming them up in water and have also used a heating pad but would like something that is a little more spontaneous