Start by blending together the ice cream and milk until a milkshake consistency. If you like your milkshake a little less thick, you might want to add more milk. Add all the goodies you want to make this milkshake amazing!!!
If you want to have a Unicorn horn - you can use an upside down waffle cone in place of the donuts! My boys like to add suckers and rock candy on a stick to theirs. Really, the skies the limit when it comes to Unicorn Milkshakes! The crazier the better!