We hot glued a combination of Making Memories Lemonade Blossoms and Buttons (available on Amazon) onto Ring Blank Bases from a great Ohio based Ebay store. The ring bases are also available on Etsy, but shipping takes longer. I needed them quickly and the Ebay store got them to me in just 3 days, beautifully packaged in little butterfly fabric bags. I had lots of other foam shapes & paper flowers, so we used those to vary the colors. It was great to have 3 of us selecting the flower & button combinations, as we each have different tastes in color & style. Finally to make the rings into 'swaps' we pinned on a mini printed card identifying the GS troop & city with a safety pin.
It wasn't all fun & creativity though... after my oldest had cut out 80+ labels and my youngest had punched holes in 60 of them, my husband pointed out that the date was 5/3/14 instead of 3/5/14! Arghh, I'd typed the date the English way, no wonder I'm always getting the girls' birthdays wrong!