Sorry but i can not add items here thats unfortunatelly...
But i will write it down:
TANK Core: ZZ'Rot Portal/Tabi Ninjas/Randuin's Omen/Guinsoo's Rageblade
If you ahead-you can take some of these items- Blade of the Ruined King/Runaans'/Wits End
But if you are behind some of these- Guardian Angel/Frozen Mallet/Spirit Visage/Liandrys Torment or any different Tanky item. But do not build offensive at the beggining. (For this build take Fervor of battle/Grasp of the Undying)
AP TRYBSONE Core- Guinsoo's Rageblade/Nashor's tooth/Liandrys Torment/Void Staff/Boots and something deffensive. (For this build take Thunderlord/Deathfire Touch/Stormraider Surge)
KOREAN AD TEEMO Core- Frozen Mallet/Runaans/Stattik Shiv/ZZ'Rot Portal/Black Cleaver/Boots
(For this build take Fervor of Battle or Stormraider)