All you need to have: food coloring, vases, and white or light colored flowers.
2. Cut the stems diagonally at the tips to ensure a fresh cut so water will be taken up easier.
3. Fill your vases or other container with water.
4. Add the desired amount of food coloring.
5. Place flowers into desired colored water.
6. Keep an eye on the flowers and remove once the desired color effect is reached.
7. Put flowers into fresh water vase and enjoy!