This step-by-step tutorial shows how to rig in Blender and then use in UE4 a realistic physical object like an old lamp.
The object can be grabbed and carried around while it still collides with the other physical objects in the level.
Based on my demo here: https://www.youtube.com/watch?v=_2EzvdRGvD4
The old lantern mesh (slightly edited) is courtesy of Iridesium:
https://free3d.com/3d-model/old-oil-lantern-62585.html
Source