Well as I’m now a level 90 tailor (wooo me), I’m also able to reach max tinkering. It took me all of an hour or so to hit that max taking my tinkering in total from 400 to 450.
The best item I’ve been able to make is the Hotwired Gnomish Hoverpad which you can see in the image above. It’s a 68% speed mount which means I don’t have to go and do those Ice faction quests which I never got round to. It did require 4 (maybe 5) brellium ore’s which i bought from the broker. I have been trying to harvest all my rares but I just had to buy those to make the Hoverpad.
Granted I might run at 67.5% solo but 5% of that is with my bogstrutter charm item, so that can now go.
Other items I can now make include:
10 charge versions of the portable trading tables
Cranial Capacitors for the various crafting trees which add to craft skill levels
Portable Harvesting Depot so you can now have a guild hall style harvesting depot in your house. This also requires about 5 Brellium Ore.
A shiny new firework
A beholder type illusion item
A new improved Feign Death item
A couple of dumfire pets
There are probably more I’ve forgotten. If your on Splitpaw and you need anything give me a shout. 
As I said I’ve also reached level 90 tailor and there are a few nice items in the new recipes. 40 slot backpacks are popular with my guild, I’ve made a nice new cloak for myself and a couple of guildies. If I remember right they had about 4.8% crit and around the same reuse speed boost. The master crafted armour isn’t bad really either, as most of the sets seem to have a lot of reuse and critical bonus boosts on them.
Related posts:
the B.F.C 3000 is amazing, a cannon that shoots a squid at the mobs!