In advance: Mold candy pieces . Mold stars in candy mold, filling only 1/3 full. Lighten portion of melted green candy with a small portion of melted white candy. Mold circle bases in Mini Muffin pan, filling cavities 1/8 in. deep. Chill until firm.
Bake and cool brownie pops in silicone mold supported by cookie sheet.
Cover with melted candy; chill until firm. Using melted candy in cut parchment bag, cover bottoms to seal; let set on waxed paper-covered board. Assemble using melted candy, allowing candy to set between each step. Attach nougat candy to bottom for trunk; attach trunk to circle base. Attach confetti sprinkle lights and candy star.