Varus/Kog + Nunu.
Vayne + Blitz/Leona/Taric/Naut.
Urgot/Varus/Kayle solo.*
Blitz + Ali. Naut + Blitz. Ali + Naut.
Ez + Talon works for me and a friend.
Leona + J4 is suppose to be scary.
Nautilus/Blitz + Garen.
*Solo bot lane means you have a roamer (eve, twitch, ali all great here), and is a challenge. The way me and my friends insure a successful solo bot lane is to invade enemy blue and give it to the bot laner.