I see a lot of odd things in Amsterdam. A LOT.
However, a few days ago I saw an enormous barrel coming down the canal.

In the barrel were two men. I waved them over and they pulled up to my
house and stopped. We chatted briefly and one of the men presented me
with two freshly poured beers from a beer tap on the front of the boat.

The barrel boat is a marketing device used by Heineken. There are also
two horse carts filled with wooden beer barrels that are often spotted roaming
the streets. One of these carts is a Heineken-themed cart
and the other is an Amstel Beer-themed cart.

.click to zoom in.