Broken BL Ball

You pick up the incomplete ball. If you find the missing parts, maybe something will happen?

The letters BL are engraved in the middle of the round ball. A rattling noise comes from inside.

(You take the ball and look at it closely. Suddenly you discover that some pieces are missing. If you collect the missing pieces perhaps something interesting will happen.)

([122185|Nate Manrold] stuffs the parts into the hole in the round ball. The ball automatically starts spinning and emits a clicking noise. It then takes on the shape of a complete ball.)

If you find anything on the bodies of those Guardians, give it to me. I am an expert in those Guardians!