As .....as

As keen as mustard
As large as life
As light as a feather
As long as a month of Sundays
As long as my arm
As loose as a goose
As mad as a bear with a sore head
As mad as a hatter
As mad as a march hare
As mad as a wet hen
As many chins as a Chinese phone book
As merry as the day is long
As mild as milk
As miserable as sin