Bee Keeper Singed
Now... This is not the most original idea, Someone may of already made a thread for this very thing... But I was to lazy to look around for it my self.. Instead I am going about the much longer process of typing this all up my self.. Logic.
So, Give singed a Bee keeper outfit, put a beehive on his back, Replace his potion with a Hive smoker, throw a honeycomb pattern on his shield then twist up his spell effects.

Q: Poison Trail... Leaves a trail of bees that when walked through causes them to sting the enemy for damage over time.
W: Mega Adhesive... Throws Honey on the ground, slowing enemies who try to walk through the sticky mess.
E: Fling... Well... This one doesn't get changed really.
R: Insanity Potion... When singed drinks his potion, instead of the normal whistling you get a Deep low buzzing as he runs around with his increased stats.
Sorry if its been done before and I am ripping someone off, I just thought it was a great idea and wasn't sure why it hadn't been done yet.