3 x AAA Battery Holder with On/Off Switch and 2-Pin JST
Power Functions 88000 AAA Battery Box for Trains/Motors/Lights/MOCs For LEGO Toy | eBay
ASP 53031 Link Cases for AAA Batteries - 4-Pack
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
AAA Battery Cases — Pine Wood Machining Corp
Pololu - 3-AAA Battery Holder, Enclosed with Switch
2 x AAA Open Battery Holder with JST PH Connector : ID 4192 : $1.75 : Adafruit Industries, Unique & fun DIY electronics and kits