Majestic Rainbow Unicorn T-Shirt
Behold the majestic steed known as the unicorn... replete in all its splendor with a rainbow and a castle resting atop a waterfall. All who behold you wearing this glorious T-shirt will weep at the sheer beauty of it. You will be crowned King (and/or Queen) of All Existence, be bestowed with many jewels, a harem, and live forever in a rainbow castle.
These extras are void on planet Earth, however the shirt remains glorious and Unicorns everywhere will love you for wearing it.