Claims of Room Temperature and Ambient Pressure Superconductor (Updating List)
forums.spacebattles.com
forums.spacebattles.com
* The construction method is "easy" for someone that is working in the area. (I think this method uses a dry mix of powders instead of a wet mix of materials.) I don't have a laboratory, but I know a profesor in the university that has one. I didn't spoke to him, but I would be annoyed if he didn't expend all the weekend locked in the lab with his graduate students trying this.
---
For comparison, yesterday someone posted a patent about a superconductor made of graphene with tiny holes wrapped around something and wet with some oil like material. I have no idea if someone has measured superconductor graphene in real life, and I have no idea how to make all the tiny holes, so IMHU it's much more difficult to build.