Nape Piercing

A nape piercing is a piercing on the nape (back) of the neck. It is most commonly pierced using a Surface Bar, but even nylon piercings have been known to heal here. It is perfectly safe and does not put nerves at risk. This piercing, as with many surface piercings, is prone to rejection.

Corset Piercing

Corset piercings are actually just a specific configuration of surface piercings or even just temporary play piercings. They are usually placed in two columns vertically along the back, mimicking the position of the eyelets on a corset. To heighten this illusion, string or decorative lacing can then be threaded through the jewelry.
While these are typically placed on the back, the term has more recently come to be used to broadly refer to any paired ladders of piercings which can be laced together. Corset piercings have become a common element of fetish performance groups.

It should be noted that these piercings are almost always temporary, and tend to be removed shortly after the event they were pierced for. These piercings are usually performed with captive bead rings or even just hypodermic needles; it is not reasonable to heal this modification utilizing this type of jewelry. It should be noted that if left in, much of the jewelery used in corset piercings has a very high risk of rejection (highly visible in the second photo below), which will most likely leave scarring. Therefore, fairly prompt removal is necessary with most jewelery used. Some corset piercings have been sucessfully healed using carefully-placed surface bars with bondage/slave rings, but the location still leaves them prone to rejection. These pierceings can also be done with microdermals switching from a flat head to a captive head and laced for short periods. Keeping the captives and lacing in place for prolonged periods can cause rejection whereas the piercings can be maintained with the flat heads in place.

Vertical Labret Piercing

The vertical labret piercing's lower bead sits roughly where a normal labret would (just below the lip), but instead of passing straight through to the inside of the mouth, it travels at an upward angle, with the upper exit being on the top or even slightly forward on the lower lip. The end result is that both beads are visible. Normal jewelry is a curved barbell.

Upper Lip Frenulum Piercing

The upper lip frenulum piercing passes through the webbing underneath the centre of the upper lip. The piercing heals very quickly and is relatively painless. It looks best on someone whose lips retract when they smile — showing off the piercing as well as teeth and drawing attention to the smile.
This piercing is prone to rejection and many people find that they just "fall out" after about a year. This process is relatively harmless.
This piercing is usually performed using an 18ga to 14ga captive bead ring (or sometimes a circular barbell), sized so that the bead rests just below the gumline, between the front teeth. It can of course be performed using other jewelry or sizes that don't show.

This piercing can cause gum erosion and lead to tooth decay due to abrading the enamel.

TONGUE WEB PIERCING

The tongue web piercing spent some time being relatively rare, but given the fact that it's not normally visible, it's become surprisingly common.

The tongue web piercing is done through the webbing under the tongue. The healing process is relatively fast and is largely trouble-free. Care must be taken to clean it regularly as plaque builds up on it very quickly.

TONGUE PIERCING

A tongue piercing is one of the most common, popular, and easy-to-heal piercings done.
There are two common reasons that might stop you from getting your tongue pierced. First, are overly prominent veins on the bottom of the tongue. Sometimes they can be avoided (so you may want to get a second opinion from an experienced piercer if you are told no), but there are rare cases where it would not be safe. The second thing that can make a tongue piercing difficult (or impossible) is an overly prominent tongue web. If it is too long and tight, you won't be able to stick out your tongue, making it difficult to pierce. In addition, a piercing might painfully rub on the webbing.
When a tongue piercing is first done, a great deal of swelling occurs, which usually lasts as much as a week (some people find this first week very painful to the point where sleeping is difficult, but most people experience very little pain from tongue piercing). Total healing time is about a month, during which aftercare is limited to occasionally rinses with either salt water or a mild mouthwash. 

Tongue piercings carry with them almost no infection or risks directly related to the piercing (like cancer), but they do carry a large risk of tooth chipping; after all, if you bite down hard on a steel bead, what do you think will happen to your tooth? However, the risk of chipped teeth can be almost totally eliminated by wearing properly sized jewelry. For healing and initial piercing, the tongue jewelry should be 50% longer than the thickness of the tongue (normally this is 3/4"), but once healed it is very important that a shorter bar be installed.

SEPTUM PIERCING

The septum piercing passes through the nasal septum (the middle of the nose) and is often referred to as a "bull-ring piercing." The nasal septum is the cartilaginous tissue dividing wall between the nostrils. Generally, the cartilage itself is not pierced, but rather the small gap between the cartilage (also known as the "sweet spot") and the bottom of the nose, typically at a gauge no smaller than 14ga (1.6mm).
It should be noted that extreme stretching of the septum will definitely deform the nose, pushing it down and out. This deformity is often referred to as "septum droop." The degree of deformity will differ from person to person depending on their nasal anatomy.