I started off with a sketch of a shower curtain transforming into a raincoat. I then changed the idea to and umbrella. What did work about the idea is that it was able to protect you from the rain, what didn't work is that the shower curtain had no balance. So I went back the shower curtain raincoat idea. The curtain will come with the sleeves and the hood.
I kept trying to come up with different hooks for the ceiling grid. the first clip I came up with was just a regular hook that could only go 90 degrees. What did work about the hook was that it would only go 90 degrees, what didn't work about it was that it was too big for the ceiling grid. So I changed the idea to a safety pins because one end is thin enough for the ceiling grid.
What did work about the safety pins is that is did fit in the ceiling grid, what didn't work is that the safety pin would just easily fall out of the ceiling grid because the track of the ceiling is like an upside down T and for the hook to balance it would have to go on both sides. So I went to a clip, and it worked.