Maybe themed weddings would be a good new category, possibly under ceremony and reception or wedding planning. 

https://www.wikihow.com/Have-a-Zombie-Wedding-Ceremony

https://www.wikihow.com/Have-a-Cowboy-Themed-Wedding

https://www.wikihow.com/Throw-a-Goth-Wedding

https://www.wikihow.com/Have-a-Chocolate-Themed-Wedding

https://www.wikihow.com/Have-a-Breaking-Dawn-Style-Wedding

https://www.wikihow.com/Plan-a-Winter-Wedding

https://www.wikihow.com/Plan-a-Desert-Ranch-Wedding

https://www.wikihow.com/Plan-a-Beach-Wedding (?)

https://www.wikihow.com/Have-a-Green-Wedding (?)

related:

https://www.wikihow.com/Decorate-a-Winter-Wedding-Cake

https://www.wikihow.com/Make-Sand-Castle-Beach-Theme-Wedding-Cake

https://www.wikihow.com/Throw-a-Hawaiian-Wedding-Reception

Thanks for the suggestions. These will be considered in due course.

Thank you

Thank you so much for sharing this.