You could be sipping on an all-black drink from Sonic when Monday's solar eclipse reaches totality. Sonic's Blackout Slush Float is a blend of summertime slushy goodness, vanilla soft serve, and Blackout syrup (cotton candy and dragon fruit flavor) topped with super cosmic blue and purple galaxy sprinkles. You’ll receive one free pair of solar eclipse viewing glasses with each float purchased (while supplies last). Just like the eclipse, this drink is only around for a limited time! (Provided Photo/Sonic)