I have done many embroidery laces on wedding gowns. I sew them out on fine tulle,using a water soluable stabalizer.
Trim the edges and sew on by hand. (I love aquamagic) It is a lot of work but the results are spectacular. I had one bride that LOVED Big Bird and wanted him included in her lace. I sewed him out in white and combined him with the lace that included roses. The bride loved it and had her "hidden" big bird on her wedding gown LOL.
I hope this helps!