How to import a pick-up animation ?

I want to import a simple animation, such as a character picking up a pen,
but it seems you can’t import a character with rig and a pen without bones at the same time.
In Blender, the pen is a child of the character’s hand so I can’t export just the pen with a dummy object.
Is there a good way to do this ?
Or do I have to add a bone for the pen and merge with the character to make one skeletal mesh ?

I could import the character as skeletal mesh and the pen as static mesh separately and make a socket to attach the pen to hand though,
I’d like to make the whole animation in Blender if possible, as I can make the animation more precisely in Blender than UE4.