Personally, I like the bamboos for the favors but prefer some type of flower arrangement, maybe with bamboo in it, for the tables. Maybe you could do some bamboo arrangements with flowers in them, otherwise it's just too much green.

I just received lucky bamboo as a favor at my niece's shower. She had them in slim vases that flared at the bottom and top, filled with tiny glass stones and she had a slim ribbon tied around the center with a tiny rose hot-glued on in lieu of a bow, all in her colors. I felt that it was a very nice favor.