How in the world do you sell these?
Out of 12 attempts or so, I've sold one for 50K. I've found some fantastic items with nearly maxed out follower stats and they just don't seem to sell.

Has anyone had any better luck than me?

I haven't tried selling tokens yet. I've only got a couple of decent ones so far, and I don't use my followers very often.

I have had some luck in the very distant past. I look for high main stat and Vit. Anything else is just gravy imo.

As @Zerokewl said, high primary is pretty much needed (250+), and any Vit will add on to it.

I have sold a Focus with 300 Int for 500k in the past. So you probably won't get rich off of them, but it'd be a waste to vendor them instead.

I haven't sold any recently - last time any sold for me was back in October - then the best I sold was around 350k - and that was a monster that had just about perfect rolls everywhere. It should have gone for 5M+ and I was luck to sell it at 350k after re-listing it about 20x and I kept dropping the price down and down and down. After that I started vendoring them all as it just wasnt worth taking up the space. Yeah, I may have given up 500k or so that I could have been up - but my time and the wasted auction space wasnt worth it - especially now that I'm flippin those Zuni rings so successfully. I'm sitting at 22M in gold and 19.98 in cash right now. All of that is sheer profit from flipping Zuni Pox rings, and that's not even counting the fact I have 2 rings that have int +180 and one at +170 that haven't sold yet and when they do flip I'll be that much higher up.

Never thought such a specific market would have been that valuable, especially the ability to sell on the RMAH - yeah, flippin on GAH is always possible, but on the RMAH as well - I'm shocked.