3mm Plastic Bevel LED Holder - Pack of 5 : ID 2179 : $0.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Panel Mount LED Holder, 5mm Light Emitting Diode LED Bezel Holder Panel Display for Mount Panel Display Socket Base Diode Lighting, 50 pcs Silver Color Thread Mount Size 8mm - - Amazon.com
5mm Chromed Metal Narrow Bevel LED Holder - Pack of 5 : ID 2176 : $2.95 : Adafruit Industries, Unique & fun DIY electronics and kits