Inherited possible native artifacts, giant axe of some sort?

[Misnomer]

Hi everyone, thanks in advance your help with these. My grandpa left pails of rocks in his garage when he passed, which after some investigation over the years I’m thinking might be native artifacts? Doing some spring cleaning so I decided to finally clean them up and snap some pictures to recruit some help. I’ve tried to group them wth similar stones. Time to either dump these in the garden or find out if there are indeed some legitimate artifacts in there to display!

 

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[smokeythecat]

This one only has smooth edges, so I'd say no to this one.

 

[Charlie P. (NY)]

Rock.

 

[Treasure_Hunter]

Sorry, just a rock.

 

[Back-of-the-boat]

Some parts look like bone so maybe it wasn't a native stone but maybe part of a fossil?

 

[lairmo]

I think maybe grandpa was working on a rock garden himself.....