This is a prop I built for a Star Wars party. I didn't want to spend a lot, but I did want it to look cool.
I know that there are some incredibly talented folks who put years of effort into making awesome R2D2 and other droids, but I wanted something inexpensive and I only had a few months until the party. So rather than use sheet metal and fiberglass, I used mostly cardboard and wallboard joint compound. I also use a lot of stuff that I had in my junk-box.
Yep - that was once a used refrigerator box!
Step 1: R2D2 frame and covering
Google image search is great!
Here's a site that I found very useful: (especially the Autocad .DXF files)
I acquired a few refrigerator boxes at a local retailer and got to work.
I created a frame for the body, then wrapped the cardboard around the frame.
This is a bit tricky. You'll need to soften - but not drench - the cardboard by spraying it with water and letting the moisture soak through the layers. When it's sufficiently soft, you're ready to wrap it around the frame. Apply hot glue to the edges of the frame and attach the softened cardboard sheet to it. I recommend that you get some assistance with this step.
It has a few inconsistencies, but we'll compensate for that later.