Make cupcakes. Prepare batter following recipe directions. Bake and cool cupcakes.

Ice cupcakes. Prepare buttercream icing following recipe directions. Tint orange. Use spatula and orange icing to ice tops of cupcakes smooth.

Make eyeball. Tint a 1/2 in. ball of white fondant blue and a 3/8 in. ball black; set aside. Roll a ball of white fondant, 1 in. dia. Pinch ball at one end and use fingers to roll into a log, 3/16 in. dia. x 2 1/2 in. long, that extends from the ball. Use knife to cut a slit in log, 5/8 in. deep, to create two nerves. Cut each nerve in half to create two additional nerves.

For iris, use 9 in. fondant roller with pink guide rings to roll out blue fondant 1/16 in. thick. Use narrow end of tip 1A to cut circle. Use damp brush to attach to eyeball.

For pupil, use 9 in. fondant roller with pink guide rings to roll out black fondant 1/16 in. thick. Use narrow end of tip 12 to cut circle. Use damp brush to attach to iris.

Use red edible color marker to draw veins on eyeball.

Assemble cupcakes. Tint piping gel red. Use red piping gel in a cut parchment bag to pipe blood drips in center of cupcake. Position eyeball and wrap nerves around edge of cupcake. Pipe red piping gel over nerves.