DIY 9 Volt Battery Connector for Free : 6 Steps - Instructables
2 Pcs 9 Volt Battery Clip Connector I Type Hard Shell Buckle Holder 15cm Wire - Walmart.com
Amazon.com: 9V Battery Connector,10 PCS T-Type 9 Volt Battery Buckle Connector Hard Buckle Plastic Shell Used in Student Experiment,or Other Equipment with 9V Battery(T-Type, 10PCS) : Electronics
9V Battery Snap Connector - Solarbotics Ltd.
I-Type 9V Battery Snap, Red and Black Leads, 9 Volt Battery Connector – Electronix Express