In advance: Make 6 legs per treat. Tint portions of melted candy violet using candy color. Cut pretzel sticks to 1 3/4 in. for top of leg, 2 in. for bottom of leg. Hold by end and dip in melted candy to coat; let set on waxed paper. Cut 1/3 of bottom of black spice drop. Push uncoated pretzel ends into spice drop top.

Bake and cool brownies following mold directions. Unmold brownies and position on cooling grid over cookie sheet.

Use melted violet candy in cut parchment bag to cover top; let set. Turn brownies over and cover bottom with melted candy; let set. Tint portion of melted white candy black using candy color. Set brownies flat and pipe dot eyes, pupils and nose with melted candy; let set. Use warm knife to cut small holes near bottom for legs; insert legs, adjusting angles as shown.