Tips for finishing cut bottles
I bought my boyfriend a Kinkajou Bottle Cutter and Bottle Cutting Inc. sandpaper kit because he was interested in recycling bottles into drinking glasses, candles, etc. He was really excited about the handmade gifts he planned to make, but the sanding/ finishing of the bottle rim has turned out to be such a laborious process he's only finished one glass in 6 months. The sanding papers range from 80grit to 220, I believe. It just takes so long to get a nice smooth edge that your arm is killing you and it's difficult not to give up before achieving a truly professional result.
Anyone out there have tips or tricks to make the finishing process faster or less tiresome? Any secret tools of the trade we should know about? We don't have a garage or big power tools to work with, though I've considered seeing if maybe there's something we could rent for a day(?) I've also looked into BC inch's new "diamond' sanding pads but we're hesitant to drop more money into the project unless we hear those are totally amazing.
I welcome your thoughts!