I have a simple method. I buy a bunch of desirable figures. I camp for harder to acquire import item preorders--SHFSS, Mafex, some mecha stuff like SoC/Chogokin Valks. Occasionally figma or Sentinel. Some domestics too--Transformers, Marvel Legends, Mcfarlane, Neca. I have them delivered on release, and hold onto them for about a year, gauging just how much they will resell for to get max profits. But in the meantime, I discreetly open these figures(steaming/heating tape in cases they're taped up), and remove only their hands. I then stick up their accessories--hands, weapons, anything within a reasonable size, up my ass. One at a time, of course, unless I can fit a bunch of small ones.
I've been doing this for 15 years now. Remember, I don't just stick them up my ass, I sell them. I sell them everywhere-eBay, comic shops, even Mandarake on business trips. When I can, I sell them as new, unopened. Any time I encounter a 'shit'poster on /toy/ giving me a hard time, I just think, this guy probably is playing with something I stuck up my ass. This always seems to give me the edge. Every day for 15 years I stick 30 figures worth of accessories up my ass. 210 figures a week, 10,920 figures a year. To date, that's 163,800 figures. Eight hundred times the population of /toy/. Those accessories were in my ass! You think you're better than me? Oh, you're not better than me. You handle my ass-cessories every day. You pick up my ass-cessories when you play with your figure. You use my ass-cessories to take funny little photos to post to your single follower on instagram. You give my ass-cessories to your little kid to play with. You handle my ass-cessories every day. All of you! You ALL handle my ass-cessories! Oh, I'll laugh at you before you can laugh at me. Because your toys have been in my ass.