**First off let me say I searched and didn't find this so if it's a repost screw me. =)
For factions that you can go to War with you can get unlimited limited items until your Rep is destroyed. I happened to be near Gadgetzan so I used Blizrik Buckshotas an example.
1. Purchase limited item (If none skip to next step -p)
2. Position yourself in a way that you are as far away from other NPC as possible.
3. Go to Reputation Tab.
4. Click on Reputation of NPC (Only some reps will let you go to War)
5. Check the At "War checkbox"
6. Kill quick and as quick as possible uncheck the box again (Don't want to get too many guards after you)
7. Wait for a few minutes and NPC will respawn with limited item again.
Pics posted below.
![]()