DeviantART member sgtgarand makes boomerangs. They're both visually attractive and practically functional. This one has a novel shape. It looks like Princess Cadance, a character on the cartoon My Little Pony: Friendship Is Magic.
In this video, sgtgarand takes it out for a spin. The wind isn't ideal, but Cadance flies and returns successfully.
He also explains why Cadance is scowling in the boomerang. Her appearance is a reference to this scene in the episode "The Crystal Empire"--Part 2. Cadance is weakened and unable to fly. So her husband, Shining Armor, throws her into flight to defeat the villain Sombra.
You can see the scene nicely illustrated in this automaton by renegadecow.
-via Equestria Daily