damn this quick reply, I just typed it all out again and forgot it wasnt working *sigh*
http://www.daniel15.com/forum/index.php/topic,703.msg3800.html#msg3800there is also this item, which maybe you could use and adapt to use eggs instead of cards?
with the display message, it doesnt have to be a *message* as such, it could be an image eg egg
so you create the item, then put in the display message something like:
Congratulations you have an egg
[img] http://www.url to your egg.com/egg1 [/img]
To keep the egg please save it
or words to that effect.
You set your eggs to hatch immediately, so that when someone 'uses' ie opens the item it will hatch, or set it to hatch later if you want them to save it
you can set the item to stay in their inventory or be removed after using (opening)
there are some random items that maybe you could adapt too
or maybe set up the eggs in a random scrip and then point to the script in the item ?
just some ideas I had but other people might have better ones, I cant code