I've found some weird and beautiful art by Shigeo Fukuda, an amazing optical illusion artist who has sadly passed away this year. You can view his artworks here:
His artworks include impossible looking images, including a 3D model of Escher's waterfall, and the sculpture Encore. Encore is a sculpture that looks like a pianist from one side and a violinist at the other side. Another of his artworks include a strange collection of objects that create the shadow of a piano.
This post was edited to correct a spelling mistake.