A Public Shower Against Meat
There used to be video.
Naked protest against troops in Afghanistan:
A naked woman stopped traffic near the Houses of Parliament yesterday, by clambering on to a black cab for a five-minute ‘yoga protest’. She yelled ‘Troops out of Afghanistan’, as the cabbie tried to shift her and tourists looked on. Police finally managed to move the woman.

A protest outside a facility of The Assam Rifles (a military unit) in India. Sadly the photo has been blurred and it came without any details on the protest itself, although it’s pretty clearly the same event (or at least, the same event location) as seen here.

Not naked, but deliberately humiliated:
Apparently this was an official parade of humiliation, in China:
As part of a two-month crackdown on vice in the booming city of Shenzhen, public security officers handcuffed about 100 women and some of their male customers, dressed them in bright yellow prison tunics and hauled them through the streets.
This is from a Spanish naked-cycling rally about five years ago:
From here:
Madrid has celebrated the 4th Nude cyclist rally under the slogan ‘We continue to be naked in traffic’.
The route was through the central streets of the capital. The protests are designed to show how invisible cyclists are to motorists…