Combine 2 champions.
Seen a few combos from funny ideas out there and wanted to see what other people brainstorm.
Examples: shaco having a Jax in the box, Annie replacing Tibbers with volibear, and I just had one earlier where Thresh replaced his lantern with Tahm kench on a fishing pole.
No more missed lantern clicks anymore!!!
summons a
(300 + (30*[number of minutes in the game]) stacks included) when using his passive.

Instead of summoning soldiers he summons cows that you can't milk.
summons an immobile
who channels his ulti instead of a pillar. Press E again to detonate.
+ 
+
Prey seeker launches a
at the enemy
+
Talon throws out a ring of Amumus that ult
turns into 
places little
on the ground instead of turrets, which shoot his trademark poisoned darts.
ult spawns a friendly
next to all ally champions.