There are a lot of cool options for DIY center pieces and decor. Currently, one of the more popular options is to use succulent plants in lieu or in addition to flowers.
Succulents are a great alternative to flowers because they don’t require as much care, and if you’re doing a DIY wedding, you can put together your succulent wedding decor weeks ahead of time without having to worry about them wilting, which did happen at my wedding (trust me it can be a downer, especially in 110 degree weather!). During the span of days, plants may not need anything, and if you prepare them a couple of weeks ahead of time, they will not need much more than a light watering. Additionally, these beautiful arrangements can also be used as wedding mementos for your guests to take with them after the party is finished, serving as both table decor and awesome succulent wedding favors.
Mini succulent kits can be purchased in bulk, and include everything you would need to create your arrangements yourself. Below is a cute video from that will walk you through quick and easy succulent kit-building.