Make up the cake mix according to manufacturer’s instructions, line a cupcake pan with liners and deposit prepared cake mix (we used a 1.5oz blue scoop to deposit our cupcakes here). Bake until golden brown, let cupcakes cook completely. Using a larger straight tip, pipe a purple layer on each cupcake. Using a straight tip, pipe either a yellow, orange, or pink top on each purple layer. Top with a chocolate day of the dead coin.