I think that I may update it to where the player cannot collide with the cubes. In the meantime, you can pickup the cube if it is above you.
i could not pick it up when it was above me. removing collisions with the player sound like a good choice.
We really should have the player collide with the cubes, otherwise I can't make my favorite level from portal flash. Again, we should have the hitbox work as a pentagon.
What about only being able to stand on them, but not have them land on you?
I think that may be the best option