Тhis year I tried dying my eggs with natural dyes, too… but it didn’t turn out very well. That’s why I was so glad to read Rumi’s post at  Something… and her advice on using natural dyes: 

The results were very nice and I’ll tell you what I learned.
The first and major condition is using white eggs. The colors you will get from using natural dyes are rather pale. I think that if you use brown eggs, everything will turn out quite muddled…  read the full article