Gardner Bender 30 Amp Battery Clamps (2-Pack) 14-630 - The Home Depot
BU-102BK-2 - Heavy-duty Insulated Kelvin Battery Clip - Mueller Electric
Amazon.com: 9 V Battery Clip Connector, I-Type 9 Volt Battery Clip, 9V Battery Buckle Connector Hard Buckle Plastic Housing and Black Red Wires Leads Iength 5.9 inches (I Type Hard Shell 8PCS) :
9V Battery Holder with Switch and Leads
Amazon.com: 5pack 9v Battery Clips with Bare Leads by Corpco : Cell Phones & Accessories
Battery 9V Clip Connector - abhishek
Snap 9V (9 Volt) Battery Clip Connector I Buckle Type Black w/ Cable - Walmart.com
9V battery clip with 5.5mm/2.1mm plug : ID 80 : $2.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Mehta Electronics Battery Clip
2 x AA Battery Holder with Premium Jumper Header Wires : ID 3858 : $1.95 : Adafruit Industries, Unique & fun DIY electronics and kits