Finished my fuse test and boy, I'm glad I did. Hope it helps you
Pro Talk - How to Fuse Cakes Together - Mark's Fireworks
Firework Fuse Connector Clip
How To Connect Fireworks Fuses Together For Reliable Connections
How to use Fuse ConneX
Firework Displays
Linking and firing multiple fireworks with Tapematch fuse
Connect 2-4mm Fuse 4way Split 10pc
Fireworks Junction Cannon Safty Fuse Connector Splitter 2-4mm Pkg. - 10
How To Fuse Your Fireworks Together
Firing Your Fireworks Display – UKFR