I recently purchased 2 fossils at a boot sale and need help identifying them.
The seller said that th first was a mammoth tooth (looks right after some googling), but no idea what the other one is - might just be a rock :-)
The latter has 2 holes running through the centre of the 'tooth'.
It's amazing were you find fossils sometimes well done.
I would say your first two images look a bit like a partial mammoth tooth, I have something similar from the Holderness but it is mainly a creamy/brown in colour.
The interesting one is the one with two holes in it.
Just going by the image were you are holding it - it looks big! and is something very special although i have no idea what it is although dino bone from the IoW looks a similar colour.
But it could also be fossil wood.