water lily 3d model

Create a model of a flower as if it were floating on water. Something like a water lilly. Don't include the water or anything other than the flower. It should fit within a 100mm diameter circle. There should be a void underneath (inside the flower) that can accept a cylinder of diameter 32mm and height 17mm minimum. The void should be covered by a removable cover that is held in place by a quarter turn bayonet fitting. There should be small holes that allow water or air to flow into and out of the void, from the bottom of the part.