2nd HT Pendant + Egg is now possible.

 Spoiler

That should stop all this theorizing.

Hmm... this makes me wonder:

Karma on HTP. Means the HTP can go anywhere and the person can redo the egg quest.

 Spoiler

Guilds selling HTPs and eggs can:

1) Get a "HTP mule."
2) Get a HTP, finish Egg quest for the first time.
3) Karma the HTP. Sell it in FM.

4) Reloot on the "HTP mule"
5) The 2nd Egg quest can pop up... do the quest
6) Obtain another stone...
7) Sell the HTP reloot (clean) in FM
8) OTHER people can Karma their HTPs to the "HTP mule"
9) have the mule scroll the saved Stone onto the HTP
10) Karma it back to the OTHER person (original owner)

11) Repeat steps 4-10

OR

4) Reloot on the "HTP mule"
5) The 2nd Egg quest can pop up... do the quest
6) Obtain another stone...
7) Scroll the HTP reloot
8) Karma to sell it in FM

9) Repeat 4-8

Makes selling pends simpler than ever before...

By the way, how did you get the quest to work without dropping your HTP?