Crosses are fairly common, many found on traditional pysanky are not Ukrainian Byzantine crosses. The crosses commonly depicted are the "cross-crosslet" type, with arms of equal lengths.
an extraordinary Ukrainian artist, who often uses a photo of a church and then stylizes the image onto his "dryapanki".
Dryapanki-eggs are dyed a dark color, traditionally with a natural dye, such as onion skins; then the patterns are scratched with a sharp object (eg, a needle or awl).
I was inspired to write the goose egg of my Grandfather's Church from seeing the church Driapanki writtten by Пан Крамар-Mr. Kramar.
Here is the link to his brilliant Dryapanka Gallery. http://www.dryapanka.com/eng/gallery.htm?id_category=1