Here’s a clever video from Sugru showing various uses for their ingenious air-curing silicone with magnets.

Sugru! Soft-touch silicone rubber that molds and sets permanently. Sticks to aluminum, steel, ceramics, glass, wood and some fabrics + plastics! sugru is the incredible new air-curing rubber for hackers, makers, gadget lovers & anyone else who wants to make things or make their stuff work better. Self-adhesive to most other materials, and flexible when cured, sugru is a versatile tool for hackers and makers – Repair and strengthen damaged cables and housing, mount components where you want them, strengthen attachments and protect against vibration, and a hundred other uses we’re sure youʼll find for it. This is great for prototyping.