Slice off the top quarter of each orange, and reserve for lid. Using a grapefruit spoon or paring knife, scoop or cut out interior of oranges. Reserve flesh for another use, such as fresh orange juice.
Use our templates or draw a jack-o'-lantern face freehand. Tape paper to hollowed orange, and cut out features with a craft knife or other small, sharp knife.
Pack each orange with sorbet, and top it with a "lid."
Bend floral wire, and poke it in -- not through -- top of orange for tendrils. Transfer to a parchment-lined baking sheet, and place in the freezer until firm, about 30 minutes.
Oranges with sorbet can be frozen for up to 3 days.