I love the cheesy sequence jokes I used to hear as a kid:
How many elephants can you fit into a Mini Cooper?
How do you know if you have an elephant in your fridge?
Footprints in the butter
How do you know if you have two elephants in your fridge?
Two sets of footprints in the butter
How do you know if you have four elephants in your fridge?
There's a Mini Cooper parked outside
Then there's the "one X short of a Y" series:
One token short of a toaster (when you collected tokens to trade in for toasters, days long past)
One can short of a six-pack
Has the whole six-pack but not the plastic thing to hold it together
Wheel is turning but the hamster is dead