Definitions:
a person who makes a living by mending pots and other metal household utensils, especially on an itinerant basis; a tinker. also (chiefly derogatory): a gypsy or other person living in an itinerant community; a disreputable person.

something which makes a tinkling sound, especially a small bell (sometimes as an affectionate or colloquial name), or an ornament (often one of a number of such ornaments) suspended in such a way as to make a tinkling sound when moved.

a person who tinkles.