another interesting thing to do with hollowed out eggs is dying them natural colors. It sounds fun and lots of potential for a fun craft day.
Here is an article I found that shows some of the natural materials to use for different colors:
The earliest dyes came from nature. Yellow onion skins or hickory bark were used for yellow dyes. Madder root or brazilwood made red dyes. Walnut shells or coffee made brown. Barks, berries and leaves of other plants were used for their colors, too. Because nature provides so many different raw materials, natural dyeing is an art, not a science. You can’t always predict the results. But, it’s fun to see what happens.
FULL STORY HERE: http://www.aeb.org/kidsandfamily/eas...aturaldyed.asp
