Many gardeners have or plan to establish memorial gardens in their yards in honor of a departed family member(s), precious pet, other loved ones, and so forth.
This swap would be an exchange of something for your swap partner's memorial garden. It can either be bought (limit around $20 or so) or made by you, if you have a skill to make something nice for their garden. This is a very personal thing ... partners can Dmail each other for information as to what their memorial gardens are like and suggestions of what they might want or need for it.
This swap is NOT FOR PLANTS unless your partner requests that. It is for decorative and meaningful objects that would grace a Memorial Garden.