This may be old news, although I haven't found anything about it here. In order to use this you have to be exlated with the Zandalar tribe.
1) Go to Zul Gurub and collect Bijous and / or combinations of these coins to get 15 Zandalar honor tokens.
2) Redeem them for a shoulder enchant of your choice at Yojamba isle.
3) Enchant your heirloom shoulders.
4) Send them to your low level twink.
5) Profit.