I've modeled this clip at the request of my friend who is in the Ukrainian army. It helps not to lose ballistic googles that are held on the rubber band. Clip is attached to the back of the helmet.
Best results are with PETG and 40-90% infill. Layer height 0.1-0.22mm. Looks better with fuzzy skin.
helmet_clipse_for_googles.stl | 12.9MB |