coordination compounds - How may copper acetate ligands be manipulated to change colors?

I have a solution of copper acetate and I would like to play around with the ligands to get different colors.

Background: The copper acetate was made through mixing vinegar (5% acetic acid), $\ce{NaCl}$, and $\ce{C}_{\textrm{(s)}}$. The deep blue-colored copper acetate spontaneously formed during a month in my dark storage room.

[edit] I neglected to mention that the experiment simultaneously produced a $\pu{0.5 inch}$ deposit of what appears to be Copper Carbonate or Verdigris on the bottom of the 1-Liter beaker. Also, I have let the copper acetate solution evaporate for several years now. The former $\pu{1L}$ is now $\pu{0.5 L}$ and has begun precipitating crystals (like the ones on the wiki page). Fun fact: During the Renaissance, glacial acetic acid was made by dry distilling metal acetates and primarily copper(II) acetate.[/edit]

Question(s):

1. What easily obtained household chemicals may be mixed with samples of the copper acetate to change the ligands attached to the copper and thereby alter the color?


2. Will heating or cooling the solution change the color and/or ligands?