Nape piercing
Somewhat less common are surface anchors, commonly made from surgical implant-grade titanium. A surface anchor has two parts: a base or foot which is inserted under the dermis during the piercing process and which incorporates a stem exposed to the surface, and a decorative disc or ball of jewelry which typically appears flush with the surface of the skin. Surface anchor nape piercings are most commonly found placed symmetrically on either side of the spine at the nape.
Anchor
So named due to its resemblance to a traditional agricultural plough. Many manufacturers produce a plough-style design, all based on or direct copies of the original CQR ("Secure"), a 1933 design patented in the UK (US patent in 1934) by mathematician Geoffrey Ingram Taylor. Ploughs are popular with cruising sailors and other private boaters. They are generally good in all bottoms, but not exceptional in any. The CQR design has a hinged shank. Despite the widely held belief that this is to allow the anchor to turn with direction changes rather than breaking out, the actual purpose is to prevent the weight of the shank from negatively impacting the fluke's orientation while setting. Other plough types have a rigid shank. Plough anchors are usually stowed in a roller at the bow.