"I want to buy computer parts."
Translation:Chcę kupić części do komputera.
The people around Białystok speak like that. The rest of Poland make fun of them because of that. Generally dla is ok when we think about person.
Chcę kupić części dla Marka - I want to buy parts for Mark. - this is ok, natural sentence.
Chcę kupić przyczłap do bulbulatora - Also ok. Bulbulator is a thing. (both przyczłap i bulbulator have no meaning but are used solely in jokes)