I decided to make my team around a Lapras build I made (it's actually not exactly original), mostly just for the lulz, but also to prove that it can work.
Lapras @ Leftovers
Shell Armor
252 HP, 6 Def, 252 SpD, Careful
Curse
Roar
Rest
Ice Shard / Avalanche
I came up with this when I was using...