Instead of asking your younger bridesmaids to carry posies, they may enjoy the novelty of carrying hoops. Get a plain wire hoop from a craft store and cover with coloured ribbon and flowers (real or fake). You could even suspend a teddy on a swing or charms if you are feeling very creative. Go for as covered or as simple as you like! A 6 inch hoop costs 82p whilst a 20 inch one costs £1.03 at Rainbow Florist Supplies Ltd.
This finished version is from Perfect Petals. These hoops also make simple entertainment – with a stick to twirl them, your bridesmaids can race them where ever you have space. Your grandparents (or even great grandparents) may remember this game from their childhoods.