Making Flowers from Plastic Milk Jugs?

This is my flower vase and I would love to hear any ideas on what colors to do them in. I have used the entire milk jug, the plastic ones. I use the bottom of the milk jug for little stackable bowls, and then I cup strips and make flower shapes out of the rest of the plastic. I still do have a small bit of it left, where the handle was. I will figure out how to use that later.

I am going to glue the flower parts onto the stems. I will probably put math problems down the stems, with notes on them, especially fractions.

I want to use a button to be the center of the flower, so I can sew the flower to the stem. Any ideas on colors?

Note: you put the little flower shapes under hot water to bend them and then when you get them how you want you let cold water run over them for a second or two.