Try them as gifts for the guests! Terrarium favors are a huge hit, and you can bet on terrarium centerpieces being quite the treat for wedding guests to receive. A living gift is a lovely reminder of your union to your family and friends, and as it grows and thrives, they'll think of you. Here's a new one from a client of ours: terrarium-making station at the wedding! It's a fun way to entertain guests, though maybe have a few aprons on hand for those finely dressed or clutzy folks.