Rugged Metal Pushbutton with Blue LED Ring [16mm Blue Momentary] : ID 481 : $4.95 : Adafruit Industries, Unique & fun DIY electronics and kits
5Pcs 16mm Metal Latching Push Button Switch with Blue LED Light DC 12V/24V, LINKSTYLE ON/Off 4 Pin Self-Locking Round Waterproof Marine Switch for Car RV Truck Boat SPDT: Amazon.com: Industrial & Scientific
Snap-in momentary push button switch with a blue LED ring 3-9V - MyElectronics
LED Illuminated Pushbutton - 30mm Square : ID 491 : $3.95 : Adafruit Industries, Unique & fun DIY electronics and kits
30MM IP67 24V Red Green Good Price Illuminated Push Button Switch-FILN – YUEQING YULIN ELECTRONIC CO., LTD
Blue Sea Systems Push Button LED Ring Switch, Blue, Off-(On) 4161 - The Home Depot