On the whole we don’t do funeral favours in the UK.
But we do have wedding favours. Same idea. You can give those who come to the funeral a little keepsake to take home with them.
It could be a single seed to plant in their garden. It could be a plant. It could be some little thing that belonged to the dead person and by which they will be remembered – a trowel for one person, a book for another.
Little things, but full of personal meaning.