I have my favorite bullet/egg that I've had for years now and I'm afraid one day its going to die. It's a small egg with a jelly type coating (so its not hard plastic on the outside). Just a simple one, no fancy shapes, nobbies, ect... I want one that I can change the speed gradually, not just low and high. Does TT have one of these? I looked at the bullet/egg section and I didnt see any but ones that had a hard plastic shell... Thanks!!