I'm planning to rob graves for some interesting and unique household items.
Why would you rob graves for these items?
People are buried with lots of cool things.
It is against the law to rob things from a person's grave. It would take a lot of effort to do something like that and you'd likely get caught. You should try to go to garage sales and flea markets instead.
It's just some stuff, it's not a big deal. Nobody will know since nobody will be near the grave.
Even if people don't know what you did, it is still wrong. It is disrespectful to the memory of the people who died, and you are stealing from their family.