Hi guys, I wanted to ask for your opinion. Ángel Ecija has many different action models that include non-folding-materials that are in order to work: "Spinning Top" uses a toothpick so you can make it spin, "Pinwheel" needs a thumbtack and a stick in order to spin as well, "Crossbow" uses string to shoot its quarrels, and "Kite" uses string also but so you can make it glide.
What are your thoughts regarding the use of this other materials in origami models? I ask because I have this hypothesis that creating models that include non-folding-materials is mostly frowned upon by the origami community. Am I right? I'd really appreciate your opinion on this : )