The Panflute of Pandaria is a fun little item.
Play the panflute and nearby critters will follow you for 15 minutes. The item has a one minute cooldown. The critters do not follow you into instances, after hearthing or while mounted they will disappear. I wish they did stay with you though. Going into a BG with a swarm of critters following me chasing down Allies would be hilarious!
Above is a pic of me chillin’ with a few new friends I rounded up. I’m not for sure how many critters you can have following you at one time. Above I have 21 which is the most I tried gathering at one time.
The Panflute of Pandaria drops off the Pandarian champion Moldo One-Eye in the Vale of Eternal Blossoms.