20 questions..?? I thought you would know that already.., didn't you make it??
cant see it from here (reply window) but I would have thought a revolved curve (glass) and a nurbs sphere( base), poly clynder (adjuster thing), another nurbs sphere (handle of adjuster thing), an extruded circle along a path if you have a wick.., that is scaled or tapered at the end, ect, ect
get some of the free tuts if you dont know which primatives to use, its a matter of personal concept as often as not.
or you could do most of it with revolved curves and a bend deformer or two (copies would do) or you could use extruded curves, or all nurbs spheres with some poly cylinders, theres a million ways
who made that one
take it easy and life will be easy