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Software for designing a cardboard blueprint? Answered

Is there any software that is specifically designed for making cardboard/wood/paper/etc blueprints? Something that you fold together like Google Cardboard. Something that I can print out on a sheet of paper to fold together. 



There's Pepakura ?

I would simply use Adobe Illustrator or Inkscape which is free (https://inkscape.org/en/). You should design it flat, in 2D. If you happen to have access to a local makerspace with a laser cutter, they could then cut it out for you in a matter of seconds.

Yes, Pepakura is the way to go then.