DIY caves out of 4" white thin PVC. Need ideas for design.

[knifegill]

Okay, I could cut it into lengths like a reasonable aquarist ust trying to get things done, but I want something a little niftier than that. I'm still keeping it simple, but wondering about other ways to assemble some catfish caves. I have five angry raphaels, one grouchy false jaguar and one L200 to house with this idea. The catfish should each have their own home (since they have become quarrelsome as of late) and I'm going to cover the ugliness with as much slate as possible, so try to keep it 2D. Think of rat mazes and snowflakes for inspiration if you can help.
Ideas so far:

Normal Condo but only across the floor. Boring.

Row of 1' sections with the back sealed and the entrance reduced to a hole big enough for the catfish to enter and exit. Dissemble for cleaning. So more of a hobbit-hole condo.

Cut the pipes in half lengthwise and do a bunch of T shaped end-butts? Don't know from here. Any more ideas for PVC caves on the 2D level?

 

[knifegill]

New idea. What about standing the lengths on end and cutting holes near the bottom like an upside-down bird house? Raphs prefer to hide in vertical positions so I expect they'd like getting their heads all crammed up inside a closed tube. I could use rocks or something to plug the open top and let the bottom just rest on the glass.

 

[half cab]

I would cut the pcv pipes in half, silicone them separately to a piece of slate, alternating the directions and stacking them randomly on each other. Just an idea. Hope that helps.

 

[knifegill]

Not bad! Sort of a hap-hazard airplane hangar field.