Original comic-inspired teaching rig; numerical specifications below are illustrative assumptions, not measured or canonical superhero specifications. Rapidly curing adhesive web is fictional; assumed line limit 10 kN. A 30° release feeds a bottom-state elastic energy and radial-force balance: 2ke²+(kL−3mg)e−mgL−2E₀=0. The displayed swing is a small-angle timing illustration using the stretched length, not a time-resolved elastic simulation. No real climbing or rescue rating.