Brudslöja are what the little white flowers are called and i just find them so pretty. Small little table center pieces wit these and then one bigger one for the main table. With lilac roses. And little flower sticks with table number :)
Take an empty coke bottle and fit it into a balloon. For adding a bit pop to this idea you could also decorate your balloon with beads, studs or design them with markers and glitters- after fitting the coke bottle.