One new prop for my 2018 Halloween display is a small creature box.
The bars on the “window” were cut down window blind slide rails.
I reused the frame’s front glass and glued it into position.
The piece of wood across the back of the frame holds it in place.
A screw through each side panel allows east removal.
The p-clamp secures the cable in place.
A 25mm hole allows for the DC cable and plug to exit.
My woodworking is pretty rough, but good enough for a prop.