SteelSeries Apex 7 TKL USB Keyboard - Red Key Switch | Dell USA
Key Switch - Small - COM-10445 - SparkFun Electronics
Shopcorp - 2 Position Maintained Selector Rotary Key Switch - Self-Lock Switch, 22mm Mounting Hole Size, 1NO Control Function, 415V Voltage and 10A Contact Current - XB2-BG21 Model (2 Pack): Amazon.com: 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