AS 15-86-11605 - The "Glass Sphere" and a "Pin-Pin"...

Caption NASA:"142:56:47 MT - At the start of EVA-2, Dave (Scott) took this cross-Sun from the north of the small Glass Sphere that he had noticed on the ground under the Rover stowage position prior to the first EVA at 108:30:36 MT.
The piece of hardware on the ground is probably a so-called "pip-pin" that was pulled off the Rover during the deployment. The "aggie" is above the slightly-buried rock above and slightly to the right of the center of the picture".