Sorry!! All those links point to a page with tracking virus.... I had to unlink them.
You would need to make sure that the "system" you make, even if it is quite simple, has your special touch... The main thing is the write up and where the idea comes from, Hence Nigel's statement... They know it's copied...
One of my projects didn't even work, but I had explained enough in the write up why I though it didn't... It passed okay... As long as your idea is different enough to show you are using your grey cells, as long as the documentation is good, so the project will be...