Rammus after Thornmail changes in 7.14

Hi folks,

First off: this is not a thread made to whine, I'd much rather hear some constructive feedback.

in the recent weeks I had a lot of fun playing Rammus. After the recent changes to Thornmail, I am a bit... miffed (it's a big buff for the item if you play any tanky champ other than Rammus, but a huge nerf if you do play the turtle) and can't really think about a good way to compensate the drastically decreased damage I now deal. And no, the 30% less slow on active W is not nearly a compensation.

Right now, I am going for an early bramble vest but not continuing building Thornmail until much later, as the additional effects are either meh or downright harmful: the damage increase is not a lot, the HP rather meh, the price is way higher now and the atk speed reduction would actually be sabotaging myself.

Instead I am thinking either Dead Man's Plate, Abyssal or maybe an early Iceborn Gauntlet. Dead Man's would give HP, armor (thus dmg, too), movement speed and a 1-time dmg burst. Abyssal would increase damage a little bit for myself and any AP teammate, give a bit of CDR, MR and HP. And Iceborn would give armor (and damage), 20% CRD and a small damage buff and area slow with Spellblade. I'm gravitating towards the Deadman's or Abyssal, depending on enemy team comp / threat level.

Any other recommendations / ideas?

Thx for any input!