Not sure if there are any in stock still, but Industrial Strength's 2ga glass pieces are actually 7mm/ 1ga. You can also get 1ga stuff on Glasswear Studios website, and from a shop on Etsy that I can't remember. So anyway, 1ga stuff is out there, you just have to do some digging. And yeah, you can just leave your 2ga stuff taped to 1ga in the meantime.
Current: 1/2 in. lobes, right nostril.
Future: vertical center labret.
Maybes: Tongue, medusa, maybe some cartilage once life settles down.