Snap-action 5-Wire Block Connector (12-24 AWG) - Pack of 3 : ID 874 : $4.95 : Adafruit Industries, Unique & fun DIY electronics and kits
100 PACK --- Blue Lock Wire Cs Q S T C 0.75-2.5mm US $6.40 lasselsberger.com
Low Voltage Wire Connectors Solid Connection, T Tap Wire Connectors, T Type 2 Pins Wire Splice Connectors, Solderless No Stripping 3 Way Wire Connector for LED Strip, Automotive Fits 24-20 AWG 12 Pack - Amazon.com
Bullet Connectors
IDEAL in-Sure 2-Port x25, 3-Port x25, 4-Port x25, Non-Twist Connector for Solid, Stranded, and Tin Bonded Wire: Amazon.com: Industrial & Scientific
Waterproof Connector, 2 Prong Self-locking Electrical Wire Connectors With 16 Awg Marine Wire For Car, Truck, Boat And Other Wire Connections. (5pack) | Fruugo NO