Garden Maze Game Concepts

My partner has created a fantastic maze generator for the Blender Game Engine. This sketch is the start of the process of me figuring out some basic building blocks to make a subtle garden-maze environment that the maze generator can call on.
Here we have a Tee-tile, and three bend tiles. I just need a few straights and dead end tiles and that will do. After that I just need to build them and load them into the generator.