I bought a so-called stealth vamping device that looks like a pen(but upon receiving it discovered it is twice as long--which was unnoticeable in the disassembled pic, lol). It is an Ego VV, and came with a CE4 Clearomizer and a Pen Cap. The CE4 Clearomizer is threaded toward the top(just beneath the plastic mouthpiece), which is how the Pen Cap screws on. So now I need to buy more CE4 Clearomizers for the device(because the replacement heads just don't work like the originals in my experience, and my mouthpieces all crack after a little while--I experienced this with the non-threaded ones I bought after not being able to find threaded ones). Anyway, I can't find any CE4's that are threaded for a Pen Cap without actually buying the Pen Cap with it too. I already have a Pen Cap and don't want to pay for and accumulate dozens of Pen Caps when I don't need more than the one I already have. Does anyone know where to get CE4's that are threaded for a Pen Cap without having to buy the Pen Cap with it? If I was going to have to buy a Pen Cap every time I bought a Clearomizer, I never would have bought this particular stealth vamping device. Please help me if you can. Thanks everyone!