These beautiful flowers that are technically neither calla nor lily (Who would have thunk!) look so much like modern art sculptures to me. Here is a quick DIY tutorial to make paper Calla Lily. I have only ever seen them in white but I'm told they come in several colors - pink, purple, yellow, orange and green.
Here is my interpretation of how the colored ones look. What do you think? Have you seen them in color?
Calla Lily available for purchase here.