Equipment Slot Upgrades
The Minecart Upgrade Kit effectively gave us vanity minecarts, so why not do the same for other equipment slots?
All of these would be obtained at the appropriate points in progression.
[Drops instead of an Eye Bone, but drops one when used]
Lets you access the safe via right clicking any pet, like Chester (changed from piggy bank to safe for greater utility). Can be toggled off
All Seeing Eye
[Drops instead of the Suspicious Looking Tentacle, but drops one when used]
Gives all light pets the same brightness as the Suspicious Looking Eye, also speeds up slower light pets. Can be toggled off
[Crafted with Black Sail (drops from Flying Dutchman), Magic Drive (drops from Mourning Wood), and Engine Parts (drops from Martian Saucer)]
Gives all mounts infinite flight time, and a higher max speed. Can be toggled off
[Crafted with Luminite Bars, Chain, and a Hook]
Gives all hooks the same reach and velocity as the Lunar Hook. Can be toggled off
Tangentially related, but loadouts should also have unique equipment slots for further customization options.