So my mom is very adamant on getting a petting zoo for my daughter's birthday. I don't mind if we have one nor do I mind if we don't so I'm just letting her do what she wants as long as it doesn't rain. My question is how do i put that on the invitation to prepare people to not wear anything that will get dirty but also reminding them that it's not gonna happen if it rains? Lol for some reason my brain can't put that into a short sentence for the invites.

PS. I know she's not gonna be able to really enjoy or remember it but we are gonna have a lot of older kids there the only young ones are my daughter turning 1 and my son who is 2.