u/Internal-Freedom-455

I've just now noticed that the tailpiece on my Tony Iommi SG Special sits skew on its posts. So bad that it's left little indent marks in the bodywork. How do I fix this? I live in a part of the world without access to decent luthiers so I need a DIY hack here. I saw a dude on YouTube fix his gap with a washer but I can't find one thin enough as my gap is way smaller yet still causes a mean tilt. I've added a little bit of plumber's tape in the interim just to lift it off the bodywork but it is def not going to do the trick long-term... Any help appreciated!