Aren't current toilet bowl rings made of something other than beeswax now? I don't remember where I heard that but it was in conjunction with someone's warning about not using it. Dunno, just passing on something that may well be an internet rumor. But I would verify it before blithely going ahead and using it.
One formula I tried years ago was beeswax+ATF fluid, mixed around 5 or 6:1. Beeswax+STP in about the same ratio worked pretty good too. But like I said, it was a mess-and-a-half to make so I went back to good old store bought beeswax/Alox 50/50 and never looked back. I like do-it-yourself independence as much as the next guy but some things just don't make sense IMO. I guess if there's a drought brought on by another Obama scare and lube disappears from the market due to hoarding, knowledge of home recipes might come into their own...