Wildflower seed packet inside a pretty printed envelope with the words:
"No longer by you side,
Forever in your heart.
Scatter these wildflower seeds 
& remember your beloved
friend and companion"
The seed packet contains 2g of mixed wildflower seeds, for the recipient to spread in a pot or flower bed, or where they have buried their beloved pet.
Lovely addition to giving a card - easy to pop inside a sympathy card and post.