This is a hanging planter for an air plant. Please scale as necessary for the plant you buy - the pic I have here is 1.5 times scale.
Make one? Be sure to take a picture and share it!
You will have to guesstimate what scale you need to print at for the air plant you buy. I'd recommend buying the plant first and going from there. You can also carefully carve out a bit of the hole with a utility blade.
To assemble this, tie a piece of fishing line around the base of the air plant, slide the two ends of the line through the top hole, and slowly lower the octopus onto the air plant.
The bottom hole is designed to allow you to angle the air plant backwards like the octopus is swimming or straight down.