Your very own Mechanical Menace, makes a great pet!
How to Obtain
Trade Lilly 5 Transparent Bricks
Cost to Build
20 Transparent Bricks and 20 Nebular Crystals
Grows 2 black Bricks per day, plus 1 for every 10 clicks, with a harvest limit of 10 Black Bricks. Clicks on this Module give a chance for a random friend on the owner's friendlist to be sent 1 Grey Brick
The Pet Robot Module is a Rank 9 Pet Module described as a mechanical menace. It is currently the fastest known way to get Black LEGO Bricks.
The Module grows two Black LEGO Bricks a day, plus one for every ten clicks, with a limit of ten Black LEGO Bricks per harvest. Clicks to this Module also gives a chance for a random friend on the owner's friendlist to be sent one Grey LEGO Brick.