slinky

Can you guess me? A garment; not knitted, though, nor ornate,
not slinky skin-tight silk nor stretched-transparent tulle...

- Peter Reading, ?, from Tom O' Bedlam's Beauties, 1981

A Slinky, or "Lazy-Spring," is a coil-shaped toy invented by mechanical engineer Richard James in Philadelphia, Pennsylvania.

Slinkies come in various sizes. The shape is a simple helix, or coil design, of a ribbon of material, originally metal. The Slinky can "walk" down stairs as the coils stretch and reform as gravity moves them down each step.
_Wikipedia