Here are two entries from the Colorless Green Ideas Competition at Stanford.
It can only be the thought of verdure to come, which prompts us in the
autumn to buy these dormant white lumps of vegetable matter covered
by a brown papery skin, and lovingly to plant them and care for them.
It is a marvel to me that under this cover they are labouring unseen
at such a rate within to give us the sudden awesome beauty of
spring flowering bulbs.
While winter reigns the earth reposes but these colourless green
ideas sleep furiously.
--C. M. Street
Thus Adam's Eden-plot in far-off time:
Colour-rampant flowers, trees a myriad green;
Helped by God-bless'd wind and temp'rate clime.
The path to primate knowledge unforseen,
He sleeps in peace at eve with Eve.
One apple later, he looks curiously
At the gardens or dichromates, in whom
Colourless green ideas sleep furiously
Then rage for birth each morning, until doom
Brings rainbows they at last perceive.