Strange: script error with llGiveInventory

I've made a champagne tray. On the tray are a bottle and two glasses. Both glasses are slightely different and can be touched. All prims are in a linkset. When an avi touches a glass it gives the glass in inventory, then the avi should wear the glass and have the standard LL drinking animation.

For giving the glass I've used:

default {
touch_start(integer total_number)
{
llGiveInventory(llDetectedKey(0),llGetInventoryName(INVENTORY_OBJECT, 0));
}
}

I've used the same script in both champagne glasses. It works well when I (creator and owner) touch the glasses. But when I give the champagne tray to another avi the probs begin. A champagne glass can only be taken once. After that I get a script error: Champagne Glass 1: Unable to give inventory: 'No item named ''.'.

What is wrong?

Does the glass have next owner copy permission?

No it doesn't. Permissions for all objects are Modify/No Copy/Transfer. Is that the problem?

that'd be the problem... it's giving away it's only inventory copy of the glass, and then it can't find it the next time because it's gone

Thanks a lot. I'm going to try it. So this means that an object such as the champagne glass ALWAYS has to have copy permissions, yes?

Well no but that's the simplest method. Otherwise you can setup an object server that you own to deliver the champagne glass to the person who clicked the tray (or to the tray to make it more complicated).

almost impossible to reliably deliver inventory to an object, unless that object is in the same sim as the server (there are ways, but it's arcane and maddening in it's failures)

What function would you use to pass an object to and object?

The same: llGiveInventory

.

Yep that worked. Thanks Void. Still, it's somewhat awkward that copy/transfer perms are needed to get this to work.

It's only the items in the objects inventory that need copy perms, the object itself can be no copy.

Thanks Void and Twisted, it works. The content object (champagne glass) must be copy and transfer. It means that people can 'take' a whole lot of glasses and could theoretically sell them. But if I keep the glass No Modify, permissions for the next owner are hardly worthwhile because the glass needs the champagne tray in order to work properly. Still, I don't like to have copy AND transfer permissions on commercial items, but there's no other way so it seems (besides the database solution).

BTW, here's my champagne tray:

If that really bother you then you can have the glass suicide with llDie() if not given by the tray, but it's a lot of work for small result imho.

Nice champagne, make sure there is "NM" written on the stamp

Why does it have to be transfer? Isn't copy enough?

can't give no-transfer items =P (well at least not to other people)

Lol