How to send a notice telling parents not to bring anything to their children in kindergarten?

Dear Bao Dad Ma Bao, when you spend a lot of money on gifts or decorations for your children, it must be to make them happier. We are also happy to protect this beautiful feeling! However, when your child is not fully capable of managing personal belongings, if it is lost or children compete for it in the park, it will not be worth the loss for the child and you, so I hope parents will not let their children bring valuables and decorations into the park again, so that this simple little happiness can continue.

Let's put it this way: Dear parents, I am your child's teacher in kindergarten. Because there are regulations in kindergarten, children are not allowed to bring valuables and decorations to kindergarten. I hope you can supervise them. Thank you for your cooperation. I will work harder to teach these lovely children. Please rest assured.