Use a crafts knife to cut two 3-inch lengths from the paper-towel tube. With scissors, cut a 5-x-12-inch rectangle from a stack of three or four sheets of tissue paper.
Center the two tube lengths on one long edge of the layered tissue paper, leaving a 1/4-inch-wide space between the tubes. Secure each section to the edge of the tissue paper with a piece of transparent tape. Roll the tissue paper around the paper-towel tubes and secure with Halloween stickers.
Twist together two chenille stems. Gather the excess tissue paper at one tube end and secure with the twisted stems. Fill the tube with candy.
Close the remaining end in the same way. Coil the ends of the chenille stems.
Cut triangles into the tissue paper ends for a jagged look. Trim the popper with additional Halloween stickers. Use the paint pen to make triple-dot patterns around and between the stickers.