The FarmVille 3 eggs is not a bug, nor a glitch: it is a way from Zynga to welcome new players, allowing them to send 3 eggs instead of one. So all new FarmVille players are getting this by default.
But what to do if you want to send 3 Eggs yourself (or receive from your friends three eggs)? It’s pretty simple. There are some links out in the wild you can click on and send 3 Free Spring Eggs. Check them out below and make sure you share them with your friends!
3 Blue Spring Eggs
http://apps.facebook.com/onthefarm/gifts_send.php?gift=easter_item_06
3 Orange Spring Eggs
http://apps.facebook.com/onthefarm/gifts_send.php?gift=easter_item_07
3 Pink Spring Eggs
http://apps.facebook.com/onthefarm/gifts_send.php?gift=easter_item_08
3 Purple Spring Eggs
http://apps.facebook.com/onthefarm/gifts_send.php?gift=easter_item_09
3 Red Spring Eggs
http://apps.facebook.com/onthefarm/gifts_send.php?gift=easter_item_10