I often get asked where I get my ideas from... and I can honestly say EVERYWHERE! As you look around you, look at shapes, how things line up against each other, what colors are next to each other. Pictures in magazines, color combinations on cakes, the pattern on a plate, or something in a movie. You will be amazed at what triggers an idea!
Here are some examples...
Cake Image from CakeCentral.com
Poster Image from MoviePosterDB
The topsy turvy angles of this cake made me think of cups stacked inside each other.
Poster Image from MoviePosterDB
From the movie The Nightmare Before Christmas, the curve Jack is standing on inspired the curves in the tree.