To make the cookies:
- Using a #2 or #3 tip, outline Franks' face in black. (Spectrum Super Black)
- With the same tip, make a zig-zag outline for the hair and outlines for the neck bolts.
- Thin black, green and white (gray, if not using luster dust later) icing with water to the consistency of syrup. Cover with a damp cloth and let sit several minutes. (Green: AmeriColor Leaf Green)
- Starting with the green icing, run a rubber spatula through the icing to pop bubbles that have risen to the surface. Transfer to a squeeze bottle.
- Fill in the faces with green icing. Use a toothpick to guide into corners.
- With the thinned black flood icing, fill in the hair.
- With the white flood icing, fill in the bolts.
- Let dry at least 1 hour.
- With a #1 or #2 tip, pipe a scar and eyes in black.
- With a #1 tip and red icing, pipe a smile. :) (AmeriColor Super Red)
- Let dry overnight.
- Mix silver luster dust with vodka.
- Using a small paintbrush, apply the silver to the white bolts.