Speaking of seed sculptures, check out this fabulous project by artist Andi Sutton:
Pink Flamingos with a message!
"The lawn ornaments will be free-standing, pink-flamingo-shaped,
surreptitious, seed-sowing structures. They are made from biodegradable
material that, through time and the weathering process of the spring and
summer seasons, will drop seeds of at-risk wildflowers,grasses, and
perennials whose habitat and survival rates are shrinking due to climate
change. The seeds being dispersed will be from local plants as well as
those from southern states that are endangered due to the predicted
temperature increases, moving them north to cooler climates. This work
applies a new kind of preservation technique that can be used to protect
native species and preserve biodiversity: “Flagration” – a combination
of the concepts and practices of flagrance and migration. "