I just completed my first live soldering project...

Converted my son's mobile (dangly plush animals and music not cell phone) from using 4 X C batteries (LR14) to using an AC-DC transformer

I hardwired it at 6v and it worked, and I didn't burn myself, and I cut a little gap for the wire and it's really snug so the solder is under no tension.

I tinned the wires beforehand like I knew what I was doing and for once I didn't fuck it up!

Sorry, just had to tell someone. The wife's asleep and she just won't understand.