Snap-action 5-Wire Block Connector (12-24 AWG) - Pack of 3

These are like the fancy electronics equivalent of the wire nuts electricians use to bind wires together. They are a lot easier to use as well! Each

3 Way Wire Connector

WAGO 221-412/996-010 2-Wire Lever Nuts Conductor Compact Splicing

Terminal Block - 3-pin 3.5mm - pack of 5! : ID 725 : $3.95

Cold Splice Wire Tap (UB) - 10 pack : ID 1494 : $2.95 : Adafruit

adafruit-Snap Action 1-to-1 Wiring Block Connector - Pack of 5 ADA5619

Ideal Lever Wire Connectors 3-Ports Clear (10-Pack) | 30-01L23

Wago 5-Way Block Connector (12-24 AWG) - Pack of 3

Ideal Lever Wire Connectors 3-Ports Clear (10-Pack) | 30-01L23

These are like the fancy electronics equivalent of the wire nuts electricians use to bind wires together. They are a lot easier to use as well! Each block connector has a metal block inside and three levers that snap open and close to bind stranded/solid-core wire. No screwdrivers required! They're super handy for free wiring and can handle up to 20A at 300V with UL listing so you can also use them for mains wiring. Use any wires from 12 AWG down to 28 AWG.

adafruit-Snap-action 3-Wire Block Connector (12-28 AWG) - Pack of 3

The 221 Series from WAGO provides flexible, fast and safe connections. Pull the lever up, insert a conductor and push the lever back down - done! As tool-free, lever-actuated connectors, WAGO's 221 Series Splicing Connectors easily, quickly and safely connect solid, stranded and fine-stranded conductors. Setting new standards in electrical installation, the 221 Series LEVER-NUTS splicing connector is now smaller, more user-friendly and made for larger conductors.

Adamax 3014065 221 Series 3 Port Lever Cable Connector - Pack of 50

Ideal Lever Wire Connectors 3-Ports Clear (10-Pack) | 30-01L23

Speaker wire guide

Features The In-Sure Push-In Wire Connector from IDEAL. The fastest, easiest, no-twist push-in connector. Perfect for OEM lighting manufacturing, prefabricated wiring systems and other OEM and branch circuit wiring applications. The clear polycarbonate housing allows visual verification of every connection. Simply glide the wire in the low insertion force makes it easy. In-Sure also allows removal of the wire after the connection has been established.