Create a new Blueprint class and call it BP_Collectable. We will use a sphere static mesh as a collectable in this game, we will add an aura around it for it to be easily localized by the player and add some fancy particles that go up in the aura.
First, simply add a Static Mesh in the components, set it to be a Sphere Mesh and replace it with the default root component. This will be the item that receives collisions by the player, therefore, set the collision of the mesh as
OverlapAll. All the further components need to be set as
Add another Static Mesh to the root one, set it as Cylinder mesh and change its z scale to a higher number. This will be the aura of the object, therefore, it should surround the sphere, starting just under it and going up as much as it can.