Alkaline AA batteries (LR6) - 3 pack : ID 3521 : $2.25 : Adafruit Industries, Unique & fun DIY electronics and kits
3 AA Battery Case with On/Off Switch
Black 3 AA Battery Holder Box Case With Switch New 3 AA 2A Battery Holder Box Case With Switch 4.5V|battery holder box case|aa battery holder3 aa battery holder - AliExpress
Battery Holder, 3-AA with Wire Leads, 4.5 Volt DC
3 x AA Battery Holder with Leads - 4.5V - Walmart.com
Battery Holder with Switch - 3 x AA [Battery-Holder-3xAA] - US $0.50 : HAOYU Electronics : Make Engineers Job Easier
3 AA cell battery holder with on/off switch, IP65 waterproof USA | eBay
Pololu - 3-AA Battery Holder
3 x AA battery holder | 3D CAD Model Library | GrabCAD
3*AA Plastic Battery Holder - connected in series / 3S1P at FastTech - Free Shipping
3 x AA Battery Holder with On/Off Switch, JST, and Belt Clip
Pololu - 3-AA Battery Holder, Enclosed with Switch