what are the other uses of bra's apart frm its main purpose?

Water balloon slingshots~double barrel.🤣🤣🤣

Smuggling contraband into concerts

Because the job they do is so important, I haven't found many other uses..a slingshot?

My cat seems to think they make good toys.

Purse of course.

As a mask.

Instead of throwing an old bra of mine, I cut it. Used the boobs' sides ,or whatever they are called, to wipe off dust.

And the straps as support for plants to climb as they grow.

Catapult.
Ear muffs for a donkey.
Double hammock for some very very small folk.

An adornment to drape over and erect penis, perhaps?

Signalling search aircraft when lost at sea.

they support my balls nicely.

Bowling ball, protector.

Headgear, of course.

Storage!

garrote

Slinging coconuts to people you don't like.