Four Part Expandable Bird House Model of a scalable Birdcage constructed from four 3D printed parts and dollar store wood "Shish Kabob skewers". Door opens and swings. This is a basic design that I used for a narrow shelf decoration, but it can scaled up just by adding more cross beams. You can line these up in different directions, add back rooms, make a maze, expand out or add floors... The real fun of this project was to design the decorations. I haven't included any of mine since I like the look of the project plain and everyone has their own design taste. Tips for assembly: Suggestions for decorations that you might consider include the following: Ideas for "better" versions of this basic design: File Parts List: File Parts List: Print out the parts. Have fun decorating the house!