I made this as a feeder for my panther chameleon. This allows bugs to crawl around a vertical space, while containing them somewhat. I had to experiment with colors a bit as my chamaleon would not eat off the blue one I made at first. Green/brown to simulate foilage seems to be the best.
For mounting on the cage I used 3M removeable velcro tape. For screen cages you might have to get a bit creative, but you could screw into the model towards the top.
The rectangle model on the plate is the backboard to allow the bugs to climb. Superglue it or tape it to the inside of the model to give a rough surface for the insects to grab onto. I have it set to lightning infill for the cool organic pattern, but feel free to change to grid infill on the rectangle if it gives any issues.
Drainage holes are present, but need a bit of water pressure to actually drain. Feel free to drill holes out larger if your feeders will not slip through.