Aichmophillia

is a kind of specific phobia, the attraction or fondness of sharp things, such as pencils, needles, knives, a pointing finger, or even the sharp end of an umbrella and different sorts of protruding corners or sharp edges in furnitures and building constructions/materials.
not to be confused with self harm this is just the like of sharp objects you do not like cutting or harming yourself you just like the look and feeling of a sharp object