Antfuzz posted the link to Vision Extremes. These are standard CE2 design: top coil in a ceramic cup and wicks hanging down. Straight forward 510 connection, no adapter needed on anything 510. Different sizes have different widths. They are very reliable and fiddle-free. Wick great. Taste a little subdued as compare to the Stardust, but quite good. Tips come off a little easy, so that needs to be watched if you carry them, say, in a pocket. A lot of condensation accumulates in the tip, so you have to shake it out on regular basis. Otherwise, no problems. On the Regular, Mini, Stretch, and Nano - practically no dry hits, which is a wonder for a straight-forward CE2. Need a syringe or a special bottle to fill. Very good clearos. Was my staple before the advent of Stardusts.
Yiddleboge6 posted the link to the Stardusts with new tubes. More expensive than the Vision Extremes. Made for ego, so needs an adapter for straight 510 connection. No leaks at all. Ever. Wicks great. Different from a typical CE2 since it has short "bunny-tail" wicks, and the tapered shape. Very easy to fill - no syringe needed. Best carto ever, imho.
P.S. There are Stardusts with long wicks now, but since the short ones work so well (never once had a dry hit that was not user error), I haven't bothered with them, so I can't really say anything about that.