IKEA.

Back in the summer of 2001, IKEA teamed with Absolut Vodka to create this amazing 3D ad of a NYC studio apartment.  Well before I was shopping at IKEA, I remember seeing this billboard while I was in the city one day.  I used to love Absolut ads so I photographed it to add to my collection.  If I had the patience, I would attempt to search through my old photo albums to find it!  
For now, I'll just post this one I found on the internet.
 

I never saw this IKEA Tetris ad in person but wish I had!  Such a fun, creative way to sell their furniture.  
 
And if I wasn't tempted to re-decorate my entire house every time I walked into an IKEA, I would probably go shopping there more often!