Time-lapse: https://youtu.be/m7_M5Mu5xRE

Straight from the deserts of Arrakis to your print bed, I present to you: the Sandworm!

There are two files, one for mostly decorative worm and another one that is shorter and thus can be printed larger on smaller beds to be used as a pen holder, for example.

EDIT: Due to a request, added an extension piece for the worm!

Upon request, miniature version (5cm high) is availabe at Shapeways:

https://www.shapeways.com/product/Z64R3FQJB/the-sandworm?optionId=64354286

Disclaimer: this sandworm does not produce spice.