If you have not already done so, I encourage you to check out Part 1 and Part 2 of the massively popular Hyperflux Armor costume series I have posted....(3500 views is massive, right?)
Originally my intention was to make a light-up Clank backpack to go with my son's Ratchet costume, but I quickly ran out of money and time. Luckily, about 9 months ago my wife popped out a solution in the form of our daughter. So, though my daughter is more then an accessory, I decided to make her be Clank. I'm pretty sure it's what she would want to be anyway.
Step 1: Step Onesies...(ah, I See What You Did There)
I fully expect that this will become a treasured family heirloom, so I was careful to apply several layers of dark grey fabric paint with a brush. After the paint had enough time to dry, but not fully set, I peeled off the stencil. And Bam! Bob's your uncle!