Ode to Glitter

Shall I compare thy shimmer to a unicorn's poop?
Thou art more lovely and more blinding:
Rough winds do shake the darling rainbows of May,
And summer's kittens hath all too short a date:
Sometimes too hot the eye of bunnies shines,
And often their fluffy complexion dimm'd;
And every fluffy cloud sometime declines,
By chance or poop's changing course untrimm'd;
But thy eternal shimmer shall not fade
Nor lose possession of that fair brightness;
Nor shall Death make you darken in his shade,
When in eternal lines to time thou lightness:
So long as unicorns can breathe or eyes can see,
So long lives this poop and this gives life to thee.