GilroyKilroy wrote:Trivial enough to make a toon on the same server than can visit a mailbox, no?
For the Horde Ballon that would work (but in the OP he stated that he has all 11 slots filled with ally toons on that server so this won't work) but I don't believe the Argent Gruntling can be summoned on a toon that hasn't bought it.
The Argent Gruntling and Squire can be summoned by any character of the correct faction. I have summoned mine on alts as low as level 1. It is only the Guild Page and Herald that are character specific.
Other than doing dailies that provide bags and getting stones from them, the only options would cost money (either in game gold or real life money).
I can think of a couple of other options besides the ones mentioned above:1)
Get a second account (you can have up to 8 licenses tied to your battle.net account) and make a horde character on that on the realm where you have your stones (if you get in on one of the sales, this could cost as little as $5). Side note: if you do this, you can also periodically reactivate that account if you should ever need to do so again by using the scroll of resurrection or even with the 10-day Mists trial (I do this myself with my own extra accounts... the ones that have not been upgraded to Mists can use the 10-day free trial about once every 6 months or so). If you are willing to pay for 2 months subscription, you can also get the recruit a friend mount (if you don't already have it).2)
Transfer an alliance character between realms (most expensive option I think).