Ribbon, in a variety of widths and patterns
Pumpkin, hollowed out
2 googly eyes
2 table-tennis balls
1. Cut pieces of ribbon long enough to extend from inside top edge of pumpkin to underside. Starting from the underside, glue ribbon pieces one by one to each pumpkin rib (the raised part between the grooves) using craft glue. Secure end inside pumpkin with a thumbtack (glue won't stick to fleshy part of pumpkin).
2. Hot-glue a googly eye to each table-tennis ball. Glue balls to rim of pumpkin, with a small space between them, so they are aligned.