It ain’t a party without brightly colored Solo cups. And it ain’t a real party till you do some shots. So now it’s a guaranteed party because there are Mini Solo Cup Shot Glasses. But these aren’t flimsy plastic cups, they are made of reusable, stackable, dishwasher safe melamine. Four cups per set (2 red, 2 blue) and each cup holds 1.5 ounces of your favorite liquor.