Commitment Ceremony

I think with a commitment ceremony you have it easier then a legal ceremony. You can still plan as if you were having a actual full wedding (vendors, caterers, etc.), you just wont need a marriage license or an officiant. You can honestly have someone close to you and your partner oversee...guide? (idk what to call it) your promises to each other or you both can make the promises, have a reading, have the kids say something, or whatever else you want do it.

Hope this helps & Happy Planning

There are no rules for commitment ceremonies (since there is no legal component), so you should feel free to plan it according to your own wishes and tastes.