Not inviting certain children..

So, I just said yes a week ago!! Super excited!! My FH and I have been talking about who to invite and who to have in our wedding. We know we want to have his nephew as our ring bearer and my niece (friend’s kid who calls me auntie) for a flower girl. There are a couple other kids who we would love to attend. A nephew (once again a friend’s kid) and a couple others who belong to an out of town friend I know will attend. BUT we do not want my cousin’s out of control kids at our wedding. These two are the “darlings” of the family (FH and I do not find them cute at all). What is the best way to approach this? My mom suggested stating that management requests no kids outside of the wedding party and then privately tell my other friend to ignore that and making our other nephew a co-ring bearer. Advice???