* Keyboard plate (metal, plastic, cardboard, etc)
* Wire (strained for wiring to the Teensy, anything for the rows/columns)
* Soldering iron set at 600ºF or 315ºC (if temperature-controlled)
-* Resin-cored solder (leaded or lead-free)
+* Rosin-cored solder (leaded or lead-free)
* Adequate ventilation/a fan
* Tweezers (optional)
* Wire cutters/snippers