5x5 Moss ledge quick tie

I have been looking at moss meshes for my aquariums and have used the stainless steel ones where I tie the moss on with thread.I always found this cumbersome and thought there must be a better solution.

Here I have designed a 5x5cm ledge, that can accommodate a small suction cup to stick to the wall of the aquarium. The triangular cut outs allow the thread to be friction secured onto the platform without the need for tying knots