Ok so here is my version of a porygon in paper craft.
First try ever and I think it's not so bad. I added a lot of numbers, letters and pictures to explain that one .. maybe more than needed .. but I had fun. Try and make your own if you want. All it takes is some time, paper, a printer and sicors.
For printing : click the link and download the pattern [link]
( to save on ink) and print one about the size of one page (8 cm high ), 3/4 of a page (6 cm high) or even half of a page for (4 cm high)
and Porygon is owned by Pokemon