They keep on comin' it seems. Recently, about 2 days ago but I didn't have time to log it, Chuck's Bucket dropped from the Shattrath daily fishing quest. This makes it my 3rd "bucket pet" and my 70th pet on my Hunter who's also my main.
Once again, if you haven't got these pets, now's the chance. 50% drop rate and a very good way to get 4 extra pets.
If you are interested to see the state of my collection, here it is:
Patch 1.0.5 commentary
4 years ago