A wind chime!
One of my favorite upcycled was using forks as mini noticeboards, bent upwards and screwed to the wall. There are a variety of upcycling fork projects on hometalk https://www.hometalk.com/search/posts?filter=forks
bracelets, picture holders, drawer pulls, cabinet pulls, plant labels. . . lots of things.
Metal forks: Bend the handle to make hooks for keys, coats, hangbags, anything that can be hung.
Plastic forks: https://www.craftymorning.com/kids-craft-ideas-using-fork/
lots of ideas:
Upcycling old forks:
I have taken old forks and painted them and attached them to wood or old picture frames and displayed them in the kitchen.