Ours are very simple because our kids are young. Disclaimer-I have no problems with imposing a logical consequence when the natural consequence is not within her understanding, or if the natural consequence is too serious/harmful for her to experience. As an adult with more life experience than a 4 year old, I feel it is my responsibility to keep her safe- physically, emotionally, and spiritually.
1. Obey God.
2. Respect yourself. (eat healthily, do not put your self in dangerous situations-we help with that, keep panties on-yes, that's a rule around here
3. Treat people, animals and property with kindness and respect. (speak kindly, respond when you are spoken to, do not break or otherwise ruin stuff)
The natural consequences are sometimes more logical...simply because there IS no real logical consequence in the moment that young children will understand. So, if dd1 is talking in a disrespectful way, eventually if she does that to others, people wont want to be with her, however, there is no way she will get that now. So if she is being unkind I will remind her that what she is doing is unkind and would she like to try again/change her tone. If not, she is welcome to separate herself from the person she is being offensive to until she is willing to treat them with respect. Same with obeying God. She may not get that disobedience to Him will eventually cause her hardship, but we can talk about it now, and put limitations in place to help her chose the right way.
Basically we immerse her in teaching her the principles and values we adhere to, those found in the bible. Obviously that wont work for everyone, but it's what we do here. HTH