Lighten or Dye Satin Shoes - have you actually done this at home, please advise.....

I have a pair of satin sling back heels that are a cream color and my dress is bright white. I'd like to lighten the shoes, either with bleach, hydrogen peroxide, or other. Or, I would consider dyeing them light blue. Do any of you have personal experience in doing this at home? I have read many sites on this subject, but would like to hear from actual brides. If I don't do it at home, where could I take these already purchased shoes to have them lightened or dyed? They are a cheap pair of shoes I already had, would work great (except for the color), and are very COMFORTABLE. Suggestions, please. Thank you!!!