By the Universal Principle of the Conservation of Perversity, the base of the floor lamp just barely doesn’t fit under the edge of the Comfy Chair:
Well, I can fix that!
The feet descend from the fuzzy felt feet on the plant shelves, with the hex head socket transmogrified into a circle to match the chair feet. The support structure grew a flat plate to ensure it doesn’t pull loose from the platform:
Print ’em out, stick the felt in place:
Lift the chair (maybe with a small prybar atop some plywood to protect the floor), position the feet, lower gently: done!
While the M2 was warm, I ran off another set for the other Comfy Chair, just for symmetry.
The OpenSCAD source code as a GitHub Gist: