Amazon.com: DUROCK Silent Linear Switches, Dolphin Keyboard Switches with 62g Gold Plated Spring, Classic Blue Patent Silent Stem 5 Pins Keyswitch for Mechanical Keyboards (Dolphin Linear Switch 62g, 70pcs) : Industrial &
Kailh Mechanical Key Switches - Linear Red - 10 pack [Cherry MX Red Compatible] : ID 4952 : $6.95 : Adafruit Industries, Unique & fun DIY electronics and kits