Need help with Button, Copper cone, and other items

[Smilodon]

Went out yesterday and found these items. This area has produced slave tags, reales, and bottles and many buttons. The first Item was a button with Best stamped on back but it looks as though they used an upside down R for a B. Nest was a copper cone that is pretty bent up. At first glance I thought it was some type of filter until I could tell it was in a cone shape. It is around 5" in length. Last is an item that that may be made of bone. When I got it home it separtad and I could see the metal rod inside. Any ideas.

[Broken knee]

Welcome to TN the last image looks to be a knife handle. HH
Broken Knee

[woodstock]

I think you were right when you said the cone shaped piece was used as a filter. And the handle is from a untensil like a knife, spoon or fork seeing it's bone. IMHO, woodstock

[Smilodon]

Thanks for the identifications. Any ideas about the button

[CRUSADER]

Thanks for the identifications. Any ideas about the button

British circa 1830

[jefg231]

Copper thing....thimble for a giant

[digging wv]

second item kind of looks like the baffle from a muffler for small engines. ie, lawn mower, weed eater, chainsaw etc.