Thanks man! Dividers were all made from 2 things I bought at walmart on the cheap. I spent I think 6 bucks on 2 packs of the grids, and then another 3 bucks on project cover binders/bars. The grids are in the crafts section. Might have to hunt for them. The binder things are in the office supplies section. They come with the plastic covers for the projects, but i just threw those away lol. Here's the youtube I followed to get it done. The reason I went the DIY route is because dividers for tanks are a freakin rip off. I made 3 for less than the cost of paying for 1 pre-assembled divider you'd get from a fish care site/store, and I had enough left over to make a grid to cover the entire top of the tank also..
The other stuff is plain potting soil for substrate, a little sand I had from a vacation to Panama Beach. The rest of it: plants, moss and rocks I ended up getting at Hobby Lobby for 50% off (they have a deal running right now). I think i spent maybe 15-20 bucks on all the plants.
Oddly enough, I kind of picked up the idea from Minecraft. I like how you enter little biomes, so I thought I'd sort of apply that idea to individual enclosures for my Mantids. They will each have their own individual little world to live in, and it just looks damn cool.
I'm still not 100% done with it. I'm going to make a backdrop for each of the 4. I want 1 to be a rocky material, one to be a bark material and the other 2 I don't know. I'll try to stick with the theme/color schemes of each one though.