A Teemo Rework
He uses his toxic shot like normal, but now has an active ability where he swaps with a dagger and a flash light. The flash light creates a cone of true vision allowing him to disable traps and wards and grants a movement speed boost, but makes him melee for the duration. Has a cooldown between switching, resets upon kill/ assist. costs mana obviously.
He now gets a kindred effect to his Q (collecting materials) these materials lay in enemy jungle and allow him to build elaborate traps these limit his trap use so he can't set up tons. The first is a rake on the ground when enemies walk on the trap this momentarily stuns the target as they walk backward after visible trap can't be destroyed. The other being a Large Mushroom box that falls onto the enemy player's head blinding their vision and is manually set off so you need to time it right. If they hit an exploding shroom the damage is increased. Because of the kit/ passive he works well as a support/ double jungler well still working well top. the pitch fork thing may not work to well, for laning, but it's a thought. He would still keep his invisible passive. His ultimate stay the same, however after an amount of time he can use the mushrooms to bounce himself to gap close or use as an escape.
I know it's probably not the teemo rework people have in mind, but like a shaco I wanted Teemo to be rewarded for his good playstyle and map pressure. The idea could use some more figuring out, I based it off of a few horror games which I felt fit a wacky sadistic playstyle well being able to come up with a variety of strategies to get your enemy into walking into the mushrooms well in some ways you might want to save them so you have an escape if you need it.
Don't say it sucks unless you can do better lol, but if you can think of something to improve I'd love to hear your thoughts and try to make him a more well rounded enjoyable champion to play.