Stars Flashing Red, White, Blue?

Tonight in St. Joseph Missouri we saw at least two stars flashing between red, white, and clue. It was pretty obvious flashing. We watched the stars for about twenty minutes, they never moved. One was in the south sky, we think part Orion's Belt and then one was more in the southwest sky. They were different sizes and brightnesses. The one in the south west was larger and brighter. I know that stars flicker, but these were much different. We came out later in the night and they were doing the same thing. There are no towers in the area.