When you don't have a million LEGO bricks, and you can't afford the official Millennium Falcon kit, you do with what you have. The_Librarian_NULL did quite a great job with limited resources, just like Han Solo would! If you don't even have that many LEGO bricks, you can get a tiny kit.
It resembles a small ship from Jay’s Brick Blog Star Wars Advent Calendar, but it's not the same, just a coincidence.
While the tiny ship is cute, it's not the only make-do. Redditor funkblast had plenty of LEGO bricks, but not the cash needed for the kit, so he made the multicolored Millennium Falcon above some time ago. You can see more of it in an album here.
But if you're into the tiny Star Wars ships, you might be able to squeeze out enough bricks for a minimal Imperial Battle Cruiser and a TIE fighter, by deu5ex.