I included 2 versions of cavatappi pasta. One close to actual size. The other a bit larger and includes hanger holes for fishing line or string.  Pasta not hollow the hole way through, only the ends.

Supports needed. Recommend printing horizontally. 

Small measures 15 x 15 x 37 mm

Large measures 30 x 30 x 74 mm, hole diameter 2 mm.