I would say that both of those fall more into the realm of "traditional necromancy," though in truth the mutilation/use of a corpse was often used for other purposes beyond anything actually involving the dead.
The most common example actually spoken of these days is the Hand of Glory... a human hand used with tallow candles made from the fat of a hanged man, I believe, that was used for various nefarious purposes.
This particular item, using items from a corpse, has nothing to do with necromancy.
Traditional necromancy involves the summoning of the spirits of the dead, almost exclusively. Sometimes the bodies and so forth are used to this purpose. Sometimes blood sacrifices are offered (the blood of a ram, for example). Etc. These offerings are often used to appease the dead. To this end, other more pleasant offerings are made, usually of a personal nature to the spirit being called.
In more modern practice we also see the practice of death magic, as it is called, incorporated into the necromantic arts. Death magic, the magic of change, can be used to offer a great deal of personal growth and beneficial effects for those who are involved with it, contrary to the somewhat frightful image that its name creates.