UEFN’s Carryable Spawner Device allows us to create custom objects that players can pick up and interact with in-game, without using Verse or Scene Graph. This method is useful for when we need a custom model that the player should interact with but isn’t in fortnite’s library. #uefntips
NOTE: This method does NOT add the custom model to the player’s inventory. That system is handled by the Scene Graph.
https://dev.epicgames.com/community/learning/tutorials/OxG8/fortnite-custom-items-with-the-carryable-spawner-device-in-uefn