I made little hatchling Tengu for it- big nosed Tengu with wings, bird faced Karasu Tengu, and little birdlet Karasu. The rare Karasu have little crowns and their eggs are gold and silver- the crowns and eggs are texture change with choices of gold or silver on touch. They all inquisitively watch the world from the safety of their eggs, but are not quite ready to finish breaking out and join it.
You can hold the eggs in left or right hand, to carry your little hatchling around with you.
There is also another event that starts July 10 on the sim- which is how you can get the items at the booths with the baskets full of gold coins. For now, they are just there to tease you, as you can't get them until the 10th!
To be found at ORIGAMI!