A delicate ornament with a shape reminiscent of the bracts of a thistle.

Like the other Shell Ornament, but twists into itself another 180 deg. Loop hole is 3mm in diameter; wall thickness is ~1.73mm at edge, tapers to ~1mm (rib depth) in the centre.

A version of the spiral ornament with fewer twists and a thicker surface (3mm). May be suitable for printing in Milky White Matte Glass and/or Stainless Steel.

Contains a smaller version of itself hanging freely by a loop. Outer loop has 4mm hole and is 2mm thick, inner loops are ~1.6mm thick, with ~0.7mm of clearance.

Fun spiral flower ornament. The loop has a 2mm hole.

This may be a bit fragile - the stems are about 1mm (or less) where they meet the sphere in the middle, but it is also supported where the bars intersect between the quarters.

A slightly more robust version of Shell Ornament 2, with thicker ribs and a bit less rotation. The rib width is less than 0.7mm at the centre, but the rib depth is ~1.3mm. I expect some fusing and loss of detail in the centre, but not too much, I hope. The previous version is still available at http://www.shapeways.com/model/66469/shell_ornament_2.html.

Twists into itself like a shell (but from both sides). Loop hole is 3mm in diameter. Wall thickness of ~1.73mm.