This was a very messy process- despite the fact that Z was the only one squirting the dye- we all had it all over us.
Not recommended for the mess-resistant folks out there:)
We made one vase of red and one of blue- the blue definitely had a more pronounced effect- the red became more of a pink tone.
These pics are from day 1- by day 3 they were really blue and pink! Very exciting for a little 3-year-old, and me too! The 1-year-old was oblivious:)