I play darts as an amateur. I love the game and have a darts board in my house. I have recently replaced the parquet floors with a wall to wall carpet and I did not want to place some lath or masking tape on my new carpet.
So I ended up with a laser marked toe line. I purchased a simple line laser, used it as a plumb bob to determine its own place and installed it over my darts board. While installing I did not have a decent camera, so I ended up photographing the whole installation with my old Nokia E70. After purchasing my Nikon D300, I took another photo, with a little bit more quality, which you can see at the end of the gallery below.