Mentioning only the ones I think I can ID, from left to right in the "main" photo:
miscellaneous lead scraps,
fired post-civil-war pistol bullets,
a fired civil war Minie-ball, specific type unknown (needs cleaning and closeup photos), "mushroomed" by impact,
horsegear strap brass buckle,
odd-shaped brass button (need photo of the back to be more specific),
rivet from some kind of leather equipment (need to see its back),
brass eyelets from a poncho or tent or tarp.