Painter Jax skin?
So off of the poro icons, you have a singer which covers Popstar Ahri, you have a keyboardist which covers Sona in general (though this one's Arcade Sona), and then you have a painter poro. That covers nobody currently.
But... a paint brush can be an unusual weapon.
http://3.bp.blogspot.com/-xkhJnI9nDus/TuHA0U7jYuI/AAAAAAAAAH4/NVeXm7lZlzE/s1600/brushes.jpg
And Jax uses unusual weapons. And Jax has 6 eyes which in elementary school your teachers say there are 6 colors in the rainbow (until you get older and you find out violet and purple aren't the same goddamn thing and your entire life's been a lie). So you could have Jax have 6 different colored eyes, swinging a paintbrush that causes paint splatters every time he hits an enemy with an empowered attack or a third hit after level 6.
Pa-chow, painter poro covered. Now all is right with the world.
But wait. Level 6? 3 hit ability at level 6?
6 / 3 = 2.
6 colors, 6 / 2 = 3.
3 is the number of sides in a triangle.
Illuminati confirmed.
Who wants to paint with the champ?