I put the grommets together, just like I would if I were using them on fabric. I have a cool little tool like a hole punch. Then I layed them out in a snowflake pattern, this would be great if you had several sizes, and glued them together using Aleene’s Jewelry and Metal glue. When I was looking up the link for the glue I discovered this great tutorial for washer snowflakes! The glue takes just a couple moments to dry, so it is quick and you do not have to mess around with hot glue.
I put a ribbon through one of the grommets to hang it on the tree. I like the difference of the gold snowflake on our silver tree. It looks so pretty.