PROBLEM:
Tiny house = tiny closet
SOLUTION:
Foldable Clothes Hanger
"coat hingers"
https://www.kickstarter.com/projects/simonegiertz/coat-hingers-foldable-coat-hangers
Discussion
If this needs a kickatarter, its a scam.
This would be the cheapest product to make and get off the ground in literally weeks if you had no idea what you are doing....
Just buy a hook...