Hello Friends!  I love Fiesta (as if you haven't figured it out!)  The vibrant colors make me smile.  We use it for everyday but I also  have a collection of vintage (still growing),  and enjoy using pieces in my still life compostions.  This one is a turquoise egg cup.  I'm not sure why they call these pieces egg cups because they are too large for one egg and it would take too many to fill it up..  :)