My mom is awesome and investigated further into those chickens I posted about on Saturday. Here is what my cousin said about them at his wedding.
"This pair of “gallinitas” was designed by Rosa Britez, a renowned Paraguayan artisan, that also handmade each pair especially for our friends to take home a little good luck charm. In Paraguayan tradition the black chicken brings good fortune and prosperity while the white chicken brings love and fruitfulness. The white lace beneath is called Ñanduti, (pronounced nyan-doo-TI) in the Guaraní language. This intricate needle-woven lace imitates the appearance of a spider web. May your lives be filled with Love and Prosperity!"
And here is the link to the artists' website. She's so cute!