I know how many of you inventors have desired a versatile battery holder to power your projects, I know you can't sleep without that... so this strange accessory has born ;-)
This gadget has a simple function, keep a battery inside, and yes you could buy an ordinary plastic black and impersonal battery holder if you want, but keep in mind that this is coloured (you can choose the Sugru colour that you prefere), rubbery and even water resistant (although you can't dive with it...).
Step 1: the Actors
I made it for Li-ion 18650 batteries, because they're very powerful and really versatile for electronic projects, but you can build the same gadget for one or more batteries of any type, voltage and shape.
I've used some metal washers to make contacts, maybe copper pieces should have been better because copper is more conductive... I'll let you know after some test.