EDIT:

OK I have identified the pieces as the following:

1 73092 Black Magnet Cylindrical
1 2607 White Magnet Holder 2 x 3

2 4287 White Slope Brick 33 3 x 1 Inverted
1 3747 White Slope Brick 33 3 x 2 Inverted
3 3660 White Slope Brick 45 2 x 2 Inverted
4 3038 White Slope Brick 45 2 x 3

Can anyone here help me out with these or should I just stick to ebay?