Don't want to sound competetive but I have both my nipples stretched to 10mm (~3/8)! That's bigger than the current size of my earlobes! (after 20mm (~4/5) I let them shrink down to 10mm, then went back to 20mm, then went back to 8mm! Doing this is a good way to ensure a piercing will never close, even if you never wear anything in it: I have a permanent 6ga hole in my septum).
Wow, we have a lot of parallels in our piercings: you had a labret, I had a nostril ring. Not nice when you get a cold! It lasted about a month.
I've never had a piercing torn out (thankfully!), though I did have the fleshy section between my finger and thumb pierced for a while (about 10 days) and it kept catching on everything
It had to go.
The tongue jewelery is acrylic plastic, so it's actually lighter than a normal 14ga bar
I'm having a helluva time trying to get to 18mm (~3/4). 'Cause the tongue is muscle, it's way tougher to stretch than most piercings. Every stretch is like getting the thing done over!
My favourite (and most recent) piercing is a navel industrial (top and bottom of navel, with one long bar right through). It's class!