Thread the rings onto a long piece of string or yarn, knotting them at each end to keep them together while allowing for "slithering" movement.
For actual pet snakes, cardboard tubes (like those from paper towels) are often used as cheap, disposable enrichment:
: Ensure the tube is wide enough so the snake cannot get stuck. For larger snakes like adult ball pythons , you may need wider PVC tubes (minimum 5 inches in diameter).
Decorate the front tube as the head with paper eyes and a red forked tongue. Using Tubes in Snake Habitats
Cut several cardboard tubes into equal-sized sections (rings). Paint the rings in your desired "snake skin" pattern.