Okay, I can't take full credit for this idea. A friend mentioned it and we agreed it would be an amazing addition to the game for multiple reasons.
Suggestion: Boss trophies teleport you from island to the boss's location.
Why do this you ask?
Gives value to trophy heads besides aesthetics...which lets face it, doesn't amount to much on the market.
Opens up teleporting to new locations like hell, nml, and if one day mino/eagle get heads dungeon 4 as well, which this isn't really game breaking because already that possibility is in the game.
It makes sense that the trophy which requires 20x of the head has a function greater than the amount of 1x head (1x head makes a boss potion to teleport to it, 20x should be a full ability to teleport to it if at island and managed to wait out the grind to collect 20 and had the carpentry level to make or friend to make.
I know what your thinking now, well there is a lot of heads out there so would be easy to just buy them. Currently yes they are easy to buy, but as I've mentioned with them having a better use then looks their value goes up so may not be as easy as you think, and even now there are often none being sold other than orc overlord.
This benefits those who do bossing because now there is a way to get to bosses faster, but doesn't necessarily guarantee the boss is alive still.
This adds more usefulness to the island.
When guilds come (#guildhype2017?) this idea if created would open up possibilities of doing same with guild islands and increase community through taking down bosses together as a group. The creation of personal boss trophy teleportation is still beneficial for single players who may not be in a guild though so it holds it's value even when guilds do enter the game.
You might still be thinking though, "well this makes the game easier in a way and we want things to stay a challenge."
Answer to this: well yes, it makes it easier to get to bosses, but it doesn't make the bosses themselves any easier to take down. The ability to get this "easier" access also comes at a price of a lot of hours bossing, or a lot of coin presumably and needing the carpentry levels to create, so I don't feel its unreasonable to suggest this.
One final thought, but not certain on this as I'm no programmer, I imagine its not too difficult to create as it would be something similar to a signpost teleporting to a new location...just have to restrict it to each individual player based on ownership of island.
Only the person who owns the island would have ability to use their boss trophies, otherwise not much point to making this update because people would just go to one players island who may have all of them.
Thank you for taking time to read this and let me know if you have any further thoughts or suggestions to consider.