I've found another way to finish acrylics that I've been very happy with. I used to go through a range of sanding on my acrylic pens starting with 220 and going all the way to 2000 grit paper and then finishing off with 000 and 0000 steel wool and Hut Ultra Gloss plastic polish. The biggest thing I noticed in using dry sand paper is it takes a very light touch for each grade, or you may clog up the paper and develop dark streaks in the acrylic. Then one day I realized that with sharp chisels, I can achieve an almost glasslike surface before even getting to the finishing stage. When I'm done turning the shape, I go over the pieces first with 000 steel wool, then 0000 steel wool and if I've eliminated any blips in the surfaces, apply at least a couple coats of Ultra Gloss with a soft cloth. The end result looks like glass.