One of the studs I lost unfortunately had the silicone backs.

I’m seriously thinking about doubling them them. Butterfly back + silicone backs behind them or similar. I’m going absolutely insane.

I’ll see what I can do with the lever backs - see if there’s a way to tighten them. I actually did find the one I thought went missing this morning in the bathroom, possible after doing a quick brush through on my hair yesterday. So I still have one pair of earrings left lol.