Antigravity flight harness
From Jenny Everywhere Wiki
An antigravity flight harness was one of the items accumulated in the closet of Jenny's apartment in one universe. When she and Kim went through the closet to sort its contents, they found it again but lost their grip of it, and it “fell” upwards, sticking itself to the ceiling. As getting it down seemed like a lot of bother, they elected not to. (PROSE: Cleaning Day)
