This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/1kjVq5vLEcE
I threw an SVG logo of my sports team onto a tissue box to let everyone know who the #1 men's collegiate ultimate team is when they blow their nose in my house. Yeah Smaug.
You might want to scale it up by 5%. It is a tight fit otherwise
smaug_box.stl | 563.8KB |