Paul McNulty's Piano Tuning Hammer

​Origin
Paul McNulty is a builder of historical pianos, described by the New Grove as " famous for the high standard of [his] instruments." Within the community of builders, McNulty is noted for his efforts to extend the production of historically informed instruments later into history: while he has built many fortepianos in 18th-century style, he has also progressively sought to span the gap between the fortepiano (the cradle of modern historical-piano construction) and the fully modern piano that emerged around the last third of the 19th century. The expanding diversity of McNulty's productions has thus helped "provide an opportunity to extend keyboard performing practice to include the piano repertory of the 19th century" (New Grove). He has recreated several pianos based on those favored by historical musicians (such as Chopin's Pleyel or Brahms' Streicher), and ones that are preferable for performing works from Bach, Mozart, and Beethoven to Chopin, Liszt, and Brahms.

​Effects
When the hammer is struck against something, the object will revert to an earlier version of itself that will progress further with each strike. For example, a piano with graffiti on it, when initially struck, will revert to its non-graffitied state; when struck again, it will revert to a previous model of piano, then to a previous piano-like instrument that preceded it, and so on until it is simply reverted to constituent parts and pieces. One can decide whether the object will revert to its base materials for its original form rather than waiting for it to cycle through its previous incarnations by double tapping it (this will deconstruct any object at any stage).

It is not advised to use this on organic or living matter except in certain circumstances, as it is possible it could result in either age regression, organ-based or molecular deconstruction, or even some form of pre/non-existance.

​Trivia

 * If used on objects, this artifact is useful for removing graffiti, viruses (like on computers), easy access to internal materials, or requiring an earlier format of the object.
 * If used on living beings, it is possible to use it for small reversals such as tattoo removal, curing or temporarily reverting an illness, regrowth of a limb, etc.
 * However, prolonged use is ill-advised due to the potential dangers. If one regresses in age, they could revert to an infantile state, back to a zygote, then to an egg and sperm and eventually before even they existed, or begin to come apart at either an organic or molecular level until they are reduced to their base elements and materials. Under no circumstances is a living being to be double tapped, lest they are transformed into a pile of bones, organs, and other biological constituents.