Some sort of ceiling decoration to add color in the hall. DIY Watercolour Coffee Filter Garlands - perfect to create the illusion of pretty florals hanging from the ceiling, or a unique backdrop for photo ops.
Color us impressed by Esther Kim's DIY petal curtain, above. Esther says, "I made this petal curtain as the backdrop for my wedding. I used over petals to make this (the picture is of only half of the whole length of the curtain).