Yes.
Definitely a tool to enhance creativity. I'm not experienced yet, but the absolute reason why I study lucid dream is to use the power of the subcouscious as a fresh tool for creativity, it's said that the subconscious can create new concepts by combining others ones, a inedit process for an inedit result.
Check in the "Artist' Corner" section, few people painted things from dreamworld. I rode in Daniel Love' book that a jazzman (don't remember the name) was asking to dream characters to perform a new song for him. Or a painter could visit a museum and see the next painting.
One time I heard a very complex and beutiful symphony, but impossible the remind it because I don't have the tools in waking like to hear and compose music in this way. I think that with practice and belief, it is possible to work between waking life and dreamworld.
Personally I'm into music, I'm not experienced yet in lucid dreaming, but it is my goal in life, to create music from my dreams.