The largest piece, which he smuggled into the Brooklyn Museum, was a 2 foot by 1.5 foot (61cm by 46 cm) oil painting of a colonial-era admiral, to which the artist had added a can of spray paint in his hand and anti-war graffiti in the background.
The other two targets were the Metropolitan Museum of Art and the American Museum of Natural History, where he hung a glass-encased beetle with fighter jet wings and missiles attached to its body -- another comment on war, Banksy told Reuters on Thursday.
http://www.commondreams.org/headlines05/0325-01.htm
prankster, Tom Green... way, way back, I believe when he
was still doing his old community television show on cable
in Ottawa, he infiltrated the National Gallery, putting a
picture of his own (i believe) creation on the wall...
He, of course, didn't stop there though... when a tour was
coming by he started talking to them, took a marker out of
his pocket and began "altering" the picture based on
viewer feedback...
People were of course, shocked... but amazingly, always
quick on his feet, Tom somehow escaped...
I wish I could remember the name of the picture he
smuggled in there... it was some (beautifully) stupid,
juvenile thing, of course...
AH! Just did some research and find that this piece is
also included on Tom's old video (re-)release material
"Endangered Feces". A review on amazon includes: "One of
the funniest, and more sophisticated, stunts involves
hanging a painting he made on a blank wall in Ottawa's
National Gallery and returning a week later to distress
museum visitors by adding details to it with a Magic
Marker. Needless to say, Green spends a fair amount of
time on this DVD running from security guards."
It may not have been anything so grand as an anti-war
statement... but some may consider these petty acts of
anarchism and challenges to authority to be inherently
political in their own way...