I had to think about this one. I collect threads, buttons and totes. I only own 5 working sewing machines but do admire so many of the older models you all have shared on this site. But my worst addiction is salt & pepper shakers. I have over 1,000 sets and of them are antiques and over 100 yrs old. A friend of ours brought us one from east Berlin when the wall came down, some of our smaller sets fit in the palm of my hand. I have clay, stone, shell, plastic, resin, crystal, ceramic, precious metals, wood, and etc... No two sets are alike and from all over the world. I also collect Hallmark ornaments but let's not go there.