TBH, I am not too concerned about the Tackle Box. My method would pretty much get rid of the need for one. Maybe the fishing bag or net would be a better idea. Think about it....Miner has Pickaxe and Hammer, Botanist has Axe and Scythe, Fisher has a Pole and......

That's where the Net would be a cool idea, or even if someone wanted to improve on that idea.