It has been lots of fun collecting these flowers with Sarah. And then as Isaac suggested (my 12 year old) - we put them in our big heavy dictionary on the same page as the entry for "flower" so that we can easily find them two days later.
We have been using branch slices to make tags, ornaments and these hangers with them. Thus far, I have used Modge Podge to adhere them and cover them.
We are also going to make birch bark bookmarks with the flowers on them for gifts as well.
(Thank you for all the encouraging words. I will write more about that soon.)