I have a egg basket filled with those ceramic eggs. Yes, def good for painting. Had not thought of painting them!! Thanks for sharing that, hezz.
Another egg project:
DD and I took an Easter egg art class one time where we used the plastic eggs, colored tissue paper torn into tiny pieces (about 1/2 inch in size) and an Elmer's "wash" (Elmer's glue + some water to make more of a wash than a thick glue). Just brush on a bit of the wash and then apply the tissue paper pieces, overlapping a bit. Make a design or make just a colorful collage. Really pretty.
I still have and display the eggs that DD and I made back when she was about 7 or so.