Using a Pepakura File (you should be able to find one easy enough) and some EVA foam (camping roll) hot glue spray paint and craft ... and I used a soldering iron to score deep lines (forgot to mention this in the vid sorry)
by Quilling Tutorial
by ABC TV
by 365BOCETOS
by Draw So Cute
by Life Hacks 360
by paper art
by Lia Kerlay