When I saw that the challenge was metal I knew I had to use the Lots of Bots stamp set. Since I don't own the gears punch I created my own using circle punches and the boho blossom punch and then trimmed the edges. I did the same thing with a larger scallop punch. The effect was exactly what I was going for.
Stamps: Lots of Bots
Paper: Whisper White, Tempting Turquoise, Real Red, Silver Glimmer, DCWV Metallics
Ink: Black, Tempting Turquoise, Real Red, Smoky Slate
Accessories: Circle Nestabilities Die, Circle Punches, Boho Blossoms Punch, Scallop Circle Punch, Spots & Dots Embossing Folder, Silver Hodgepodge Hardware, Dimensionals