This is my second build with this account.
LEGEND:
1st Build, AD
2st Build, AP
3st Build, Hyrbrid
Teemo is the best champion when feeded (No the best champion of the LoL), i think that hybrid is the better Teemo, because u will hit so much on mushrooms and will hit so much on normal attacks.Okay i think this build i no will end today so i will mark the day that i edited each part.
(07/24/2011)

FOR AD:
On Teemo AD i'm made some masteries of farmer, the Teemo AD is the best to 1vs1 and him is good because his blind.
FOR AP:
On Teemo AP the biggest part of the masteries is to mana regen, to you hit more on the blind i chosen Archaic Knowledge.
FOR HYBRID:
For hybrid i joined the AP and AD masteries, no so much but the better to u no recall so much.
(07/24/2011)

For all the builds i made the same skill sequence, soo u no will need change the sequence of your spells.I only have it to say :)
(07/24/2011)

ON AD:
All the runes to Teemo AD is attack speed and some AD (AD is the quintensses)
ON AP:
Teemo runes on AP is full AP u no will need change the runes.
ON HYBRID:
W-Why???All quintesses AD?Yeah all the quintesses is AD because on Teemo Hybrid items he will have more AP than AD until with runes.
(07/24/2011)

ON AD:
The items of AD is almost Anti-Tank (Because black cleaver) if u do one phantom dancer of first item u can hit critical and your attacks will to be more quickly.The Black Cleaver is one nice item to AD Teemo, because if u stack fully black cleaver on the enemie u will have more chances than he to kill.
ON AP:
Teemo AP is the master of mushrooms, is the best teemo for escape and for kill enemies that chase so much (If u no die before...hehe). Teemo AP is the perfect Teemo for a plantation of mushrooms.
ON HYBRID:
I think hybrid Teemo is the best Teemo of all, with hybrid items u will hit more on mushrooms, and on normal attacks, and if u is doing Teemo runes and have some armor penetration u can hit more with your attacks.
(07/25/2011)

So i ended on 1 day this build, no was so much long.
I'm brazilian and now is 00:10 here of 07/25/2011.
So if u like this build, vote and comment.