hi pipper, funky vokals are not so easy to find... u may look on scratch and turtablism vynil ...... in some acapella sites u can find some....but good acappella sites only work with money ....
chemical recordstore displays some good sratch discs ...
otherwise, if u know the name of the artist/music you want the vokals its more easy to find on mp3 p2p download prograns...
hope this can help you out...........