Lobes: 3/4" plugs
Nipples: 6g circular barbells (in pic, I have 6g bead rings)
PA: 0g CBR
Tongue: 2g at one time, but is now only about 16g due to being out for a long time.
I used to have a tongue bar for about 2 years (late 90s). I never chipped any teeth, but my GF at the time didn't like it, so it had no use

. I had it long enough that it's fully healed, and I can still put a bar back in, if I want to. YES they can damage teeth, as Shirlene unfortunately found out. I had a plastic one for night time, to prevent that. I had a couple of close calls, where I thought I cracked teeth, but got lucky, when I had a stainless barbell in there.
Charles