cardigan clips?

[jennyCee]

Can anyone advise on what to look for when trying to find something to keep sides of open, possibly waterfall cardigan, closed. Without chains pls?
Alternatively can anyone suggest how to make something like this?

Kilt pin?

Buttons were invented for precisely this purpose.

A jumper

Brooch.

(Isn't that a strange word? Say it a few times and it does that weirdy loses-all-meaning thing)