When my son started playing with Legos, it didn't take long for me to realize that plenty of adults play with them too--like Alex Eylar, who created the Lego version of our Doctor above as well as other pop culture figures and scenes from film, television and literature. (You can see them all on his Flickr site.)
Starting to think I might like to try my hand at this, heh.
(Hat tip: Slate.)