It’s good to know that it was possible to get Crush from the Reward Diamond Box without having already gotten him from the Gem Diamond Box. Someone said they tried the two device trick and "finished" the event 30 times, and those 30 Reward Diamond Boxes only got Nemo, Dory, or Hank. Someone else said they had maxed out Dory, Nemo, and Hank already and ended up getting coins instead Bruce or Hank. So I wonder if there were some glitches with the last box because the game essentially had two different Diamond Boxes being offered concurrently (the Diamond Box that you can buy with gems that only had four emojis and the Diamond Box that was the reward for finishing the event that had five emojis in it). Oh well, at least both Bruce and Crush are now in the Gold Box.
Grouping suns isn't to bad once you get Olaf (and level him up, I think). He generate suns next to each other, but until you have him, those challenges can be tough.