Check out this Enterprise that is so small it can only be seen by using and electron microscope.
http://www.toplessrobot.com/2010/03/to_boldly_go_where_no_microbe_has_gone_before.php
Fun fact: If you thought anything even slightly like “Sure it’s a 1:1,000,000,000-scale, but it’s kind of a (expletive) 1:1,000,000,000-scale Enterprise” upon seeing this, you are a huge, huge nerd. Thanks to everyone who sent me the tip.
Darn tootin’ that’s what I thought. d: