What is more useful when it is broken?

Title say all, what is useful when it is broken? I'll go first[font="Noto Sans", Arial, sans-serif]A horse[/font]

World records! Always nice to see mankind getting better and better at doing things

A clock. Because I don't have to worry about deadlines except twice a day, lol.

I can't remmeber what is is called but there is a Japanese art of repairing damage crockery and the such like. It is often repaired with gold leaf and admired more as being more beautiful than the rginal item.