Flickr user timhook22 has posted instructions for the SDCC 2013 LEGO Hobbit Micro Scale Bag End set. Bricks in this set use common LEGO pieces so they should not be too hard to find. You can get the same Bilbo minifigure from the Riddles for the Ring (79000) set.
If you want the actual SDCC set, it’s going for a premium on eBay.
Via Toys N Bricks