Here are some objects that have a similar shape:
* Spiral staircase: The handrails of a spiral staircase resemble the two strands of a DNA helix.
* Spring: A spring, especially a helical spring, shares the same twisted shape.
* Slinky: A slinky toy is a classic example of a helix.
* Screw: The threads of a screw are a good representation of a helix.
* Some types of ropes: Certain types of ropes, like those used in climbing, are made with a helical structure.
It's important to note that these objects are analogies to the DNA double helix. The actual shape of the DNA molecule is much more complex and specific, with the two strands held together by specific base pairings.
