Most Minis Wins

Once you get the toy from the daily quest, you can unlock minis on any character, and you get the following packs from your first loot of the given source each week on each character:

[item=169848]: 1 from killing [npc=151933], 1 from opening a recycling requisition from Junkwatt/reclamation rig
[item=169850]: 1 from looting a mechanized chest on the island, 1 from [item=168394] from reclamation rig

Bondo's yard can drop:
Gazlowe
Cork Stuttgard
Roadtrogg
Bondo Bigblock
Naeno Megacrash

Mechagon can drop:
Overspark
Blastatron
Cogstar
HK-8
King Mechagon

The starting pack you get from completing the daily can contain:
Wrenchbot
Izira Gearsworn
Prince Erazmin
Overspark (second source)
Gazlowe (second source)
Bondo Bigblock (second source)

Finally, Sapphronetta comes from a followup quest obtained after completing Toys Like Us and reaching exalted with Rustbolt. This can be done in either order as long as Toys Like Us has been completed that day.

The drop rate for the King Mechagon Mini is absolutely pathetic. I am urging anyone trying to get this component to their Azeroth Mini please submit an in-game suggestion to Blizzard requesting an increase to the drop rate. With 8.3 imminent and Shadowlands looming, the last thing we want to have to do is head to Mechagon opening chests on all of our alts every week. Let's get this drop rate increased.

Another Tuesday come and gone, another 32 alts opening chests, no King Mechagon...