Various ways. They seem to be one of the products that the builder will actually leave with the customer. You can use them as borders for flower beds. If you are going to put a rod on fence, you can use them as columns, which gives a nice aesthetic appearance and also strengthens them fence a little bit. If you have a slope, you can use the brinks for a retaining wall. There are numerous ways to use both bricks and stone in the landscape. I have even seen some people going ahead in an area where they have enough of the brick to come in cover the sidewalk into the house with stones. You would be walking on the brick as opposed to low grade concrete.
