Tall metal fences taking advantage of exposed cardboard corrugation. Shown here before being sealed with white glue.

 

Small metal fences taking advantage of exposed cardboard corrugation. Shown here before being sealed with white glue.

 

An idea my partner had that came out really nice!

 

An upright tank with a big vault door on a metal stand..

 

This terrain bit started when I noticed that the broken reusable baby food jar lid fit perfectly over a dog food topper can.