Vector Thrust Purse

[ye_river_xiv] motivated me to post this as a separate idea - it was inspired by the idea 'Polycarbonate Keys'.

Any objects in a mixture of diverse objects will sort themselves according to size and density. This is because of the gravitational pull and the proclivity of small objects to slip beneath larger objects. This is also why raisins 'swim' to the top of a cereals box, if shaken long enough.

If there is just one specific item, this mechanism can be used to let it float on top. If you routinely wish to retrieve many different articles, more vectors are needed: I propose three vectors, two of which i can name : gravity and magnetism; i'll call the other X, and am open to suggestions.

The vectors are orthogonal to each other. Gravity is already in place, and the magnetic vector i propose to produce by placing a magnetic sheet in the left side of the purse. X will run alon the length. This way, a big, magnetic, Xy object will work its way to the left, frontal, upper corner of the purse. Small, magnetic, and non-Xy will go Left, down and to the back. This way, at least 8 Objects (corners of a cube) can be differentiated, or, with well worked out dynamics, 26 (corners, sides and planes).

Electric Fields as a third Vector would be cool, but the required field strength would be much to high for safe wearing of the purse (might be a good thieves-deterrent, though)