Silicone Cover Stranded-Core Ribbon Cable - 4 Wires 1 Meter Long [26AWG Black] : ID 3892 : $1.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Ribbon cable, 1.5-inch, 4-pin - Syntaur
TronicsPros LED Connector 4 Pin LED Tape Connector RGB LED Ribbon Connector LED Controller Connector Cable LED Rope Jumper 4pin Female Wire for RGB 5050 3528 2835 LED Light, 15cm/ 6in (10pcs) - Amazon.com
Amazon.com: Pc Accessories - Connectors Pro 2x3 6P 8" 20cm 4-Pack Silver Flat Ribbon Cable with Black 2.54mm FC Dual Row Female to Female Sockets (6P-20cm-4PK) : Electronics