Cons

Throughout the series, the group names a number of cons they could play. Most are discarded for a vague reason.

Heist Society
Princess Bride: "Do you know where we can find a six-fingered man on such short notice?"

Smokey the bear: Worked.
 * Fire to evacuate the building and walk out with covered items.

Uncommon Criminals
Sleeping Beauty: Always take a backup defibrillator

Humpty Dumpty: "...even if we can get the king's horses in there, there's no way we make it out before someone notices the emerald's gone."

Alice in Wonderland: Worked. Birds of a Feather: The French government banned the importation of peacocks in 1987
 * Drop the item 'down the rabbit hole' and bring a fake back up

Jack and Jill: Hale makes an excellent Jill

Pigs in a Blanket: The only way Gabrielle will get under a blanket with Hamish is if they're both on fire

Hansel and Gretel: "We only have one grenade launcher."

Catherine the Great

Wind in the Willows: Maggie was the original Willow

Anne Boleyn: '"No!" Hale and Kat cried in unison'

Oscar the Grouch: LaFont doesn't take out his own garbage

Cinderella: A girl grabs all attention and her shoe sets off alarms

The Mary Poppins: Something to do with chimney sweeps

Perfect Scoundrels
Cat in the Cradle: Hamish isn't a classically trained violinist

Ace's Wild with a little Count of Monte Cristo: "That is the perfect way to remind everyone at the Henley that we were the kids locked in a supposedly abandoned gallery when the Angel was stolen"

Basil E Frankweiler: Staying all night in a museum

Princess and the Pea: Not enough time

Where's Waldo: Hamish isn't allowed back into Morocco

Three Blind Mice: Kat doesn't do rodents

Anastasia: Bring a long lost member of the family back

Double Crossed
Queen of Sheba: "...need a set of triplets and a goat."