You know Popa, some people (namely the Gra and Rabbi Abadi) hold aluminum doesn’t have to be tovelled.”
I have only actually heard that idea in relation to aluminum FOIL pans. But bottom line, if ever you have a safeik bracha on keilim that are being toveled, bring along something that absolutely MUST be toveled, and make the brocha over those items, with the idea in mind that IF the other items actually required tevilah, then the brocha also covers them.