Vendors with limited supply items

[nilbog]

We now have the ability to add limited supply items to vendors.

For example, Crow's Special Brew

He asks you for some Crow's Special Brew. Now there are two kinds of Crow's Special Brew in the game. One is purchased from Crow himself, it comes in a red flask with black lines on it, and is drinkable via clicking like other booze. This is the only kind of Crow's Special brew that works. Also, the Crow's Special Brew you purchase from crow is in VERY limited supply. Once he sells out, its all gone until the next time the server is downed and brought back up.

What vendors should have limited supply items?
What items should be in limited supply?
How many of the items should they start with before selling out?

Any research or information about this would help.

Thanks.