I found these plastic ornaments from the 70's at the long beach flea market a few months ago. I found more at an estate sale. I deconstructed them, took out the guts, glittered them up with german glass glitter, inserted the vintage photo and viola, a new, vintage looking ornament for pennies... You could use a baby photo of a family member, or a wedding photo or family portrait in miniature. Any image will work.
Another thing that is super easy is to take a vintage photo, make a frame out of recycled cardboard and gift wrap or scrapbooking paper. Embellish it with holiday floral sprays and tinsel garland and decorate a package or christmas tree with your favorite family photos.