1x1f bricks are the smallest you can get. They are default.There is no download to any other "tiny bricks" that I'm aware of.
too bad that isn't possibleor is it
Could you place another brick in the empty half space of the wedge bricks?This is a legitimate question, because I really don't remember.
Blockland has a grid with 1x1's, so even if you could make bricks that are smaller (which is very much possible) you couldn't "build" with them cause the grid is too large.