1. [Alchemist] Boiling Blood Berserker by Hawkseye
This set comes with seven items including: blades, armor, flasks, a hat, punching claws, rags, and spikes.
The reason I chose to feature this set is because it is a well executed, simple idea. There are no exaggerations in the design, just a tattered-robed alchemist riding its battle ready ogre. Outfitted with black clothing, the ogre looks dangerous enough along with the many tusks and horns attached to his forearms, head, and the alchemist's tiny saddle. The swords too. They aren't flashy but they look good, and the sword straps are created to perfectly match the swords' designs in their placement position.
2. [Bounty Hunter] Poor Man's Shield by SPL4tt
"A busted old shield that seems to block more than it should"
Even though it's modeled after the in-game item, the colors originally match well with Gondar. Spl4tt has also made the marks and cuts depicted by the in game portrait more detailed and the item has an excellent size transition as well. Although this takes up the shoulder slot for Bounty Hunter, it is a nice change of pace compared to always having him carry a shuriken there (which by the way is never the one you use to throw).
3. [Tiny] Lava Tiny by heckaa
A second, upgraded item to the previous Lava Tiny by the same creator.
When we already have the Elemental Ice Infusion item in game, there is no escaping from the thought of the opposite type. At the other end of the spectrum, we arrive at this lava element. This design is a nice representation of what everyone can imagine a molten Tiny to be. The great features of Lava Tiny include molten rocks in all of his animations. That means when you are using Avalanche or Grow, the rock chunks that rise and come out are all imbued with magma. There is a video available at the submission page demonstrating all of Tiny's sizes and animations. The only complaint I have is that Heckaa removed the charred tree that would've been available via an Aghanim's Scepter.