BlueDogs some people make them some buy the. Some get creative and turn ordinary stuff into little vaping machines. Example, flashlight or altoids tins etc. It can become hobbylike, because its fun to try new things and flavors. The standard super slim "ecigs" arent really enough for a lot of people. If your happy with that cool! They are just limited. Watch some reviews on you tube for box mods to get a better idea. Also you can usually make or buy them cheap...well unless you get the high end ones but that goes for anything