Short Wire Alligator Clip Test Lead (set of 12) : ID 1592 : $3.95 : Adafruit Industries, Unique & fun DIY electronics and kits
PhaZZer Demonstration Cartridge Alligator Clips - The Official PhaZZer Store - The TASER® Alternative
Test Leads, Banana Plug to 45mm Alligator Clip, 16 AWG Silicone, 50cm (1-Pair) - ProtoSupplies
Amazon.com: Sumnacon Dual Ended Crocodile Alligator Clips, 15A Test Lead Wire Cable with Insulators Clips, 2 Pcs 3.3 ft/1m Test Flexible Cable with Protective Jack Copper Clamps for Electrical Testing : Industrial