I was thinking it would be really cool to make a plugin that had custom models/entities. Would this be possible in 1.14.4? Possibly with armorstands or something? Not too sure where to start with this.
@Symphonic I made a plugin that does just that. My plugin, QualityArmory, add custom gun models and other weapons to minecraft: https://www.spigotmc.org/resources/quality-armory.47561/ (Posted a spigot link, because it is easier to update there) You can also look at the source-code if you need help, but basically all you would be doing is checking if the "Custom model" for the item is the same as what you specified for your resourcepack, and then just treat it like any other item.
Does this work when the items are dropped? If so, I should be able to adapt something from this code.