What people have said about w/ extra duck.

"Rubber ducky
You're the one
You make Art History
So much fun"
BitterOldPunk

"Does what it says on the tin. Awesome."
Lentrohamsanin

"Such a simple idea, yet so delightful. I'm not even sure why I like these so much."
Slack-a-go-go

"Who likes the little little duckies in the pond? I do, I do, I do, a-chicka quack quack!"
danb

"With the state of post-millennial art in its current, tattered form, simultaneously supremely vigorous and dull as dishwater, it's not unusual for viewers, critics, and artists alike to look to the past for recontextualization. This collection of items from a broad swath of art history is a fine primer, as it includes a selection that's tailor-made to provide a data point (or ur-impression as it were) that can allow even the most amateur critic to look at today's works in a new light. Also, there are duckies. little yellow duckies."
beaucoupkevin
link

This is what the internet was invented for. More examples of this fine artistic endeavour at the link. ;)