How do I tell her control her kids nicely?

My baby shower is coming up in January and I have an aunt who has two kids 7&5. They are terrible. They will destroy everything and she will tell them nothing. She clearly sees them doing things they aren’t supposed to be doing and she tells them absolutely nothing. My baby shower is at my house. I don’t want her to bring her kids so they can ruin my home & my party. I’m going to spend a lot of money and time on this party and I don’t want it getting destroyed because she can’t control them. She’s a little on the sensitive side and I can come off a little rude. I want to know how in the nicest way possible to say can you please control them I spend a lot of money and time on this party. Plus my husband isn’t allowing his nieces and nephews at the party for the fact he doesn’t want them to destroy the house either. If she could leave them at home with their dad that would be better.