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Gifts with a bill of materials.

Solder-it-yourself greeting cards, SAOs and badge add-ons for people who read the datasheet first.

Shop all Learn to solder
  • 9 Products in stock
  • 100% Hand assembled
  • 24h Typical dispatch

Why these are different

  • Actually interactive

    Blinking LEDs, sound, and buttons that do something. These are circuits that happen to be greeting cards, not cardboard with a sticker on it.

  • Solder it yourself

    DIY kits ship with every component, a board, and instructions written for a first-timer. No prior experience and no surface-mount tweezers required.

  • Badge life ready

    SAOs with the standard header, built to plug straight into your DEF CON badge and behave themselves on the show floor.

Everything we make

Built on a bench, not in a boardroom

Every board is designed, assembled and tested by hand. If something arrives dead on arrival, tell us and we will make it right — we are the ones who soldered it.

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