Lately, I discovered a fantastic new product called Sugru. Sugru is a silicone putty that cures in about 24 hours, allowing the user to create/hack/modify/improve just about anything they can think of or get their hands on!
Sugru cures at room temperature, is self-adhesive, has a very wide temperature range, waterproof, flexible and dishwasher proof! It comes in several colours as well, including black/white/green/orange/blue. Try it out for yourself, you'll be hooked!