Battery holder for 3 x AAA - Keystone 2479 | Rapid Online
Low Voltage Power Solutions: Battery Holder - 3 AAA Battery Case - Triple AAA Battery Holder for Arduino, Lilypad Circuits, Cosplay, Costumes and Decorations - Set of 2 - Walmart.com
3 x AAA Battery Holder with On/Off Switch and 2-Pin JST : ID 727 : $1.95 : Adafruit Industries, Unique & fun DIY electronics and kits