As .....as

As thick as thieves
As thick as two short planks
As thin as a rail
As thin as a rake
As tight as a drum
As tough as old boots
As tough as tough
As true as the day is long
As ugly as sin
As useless as a chocolate fireguard
As useless as a chocolate teapot
As warm as toast
As well as can be expected
As white as a ghost
As white as a sheet
As white as snow
As wise as an owl