i know its weird design, but actually they DO EXIST , on these "100 year old" hollowbodies :
http://www.tdpri.com/telephoto/data/500/IMGP7536.JPG
http://www.tdpri.com/telephoto/data/500/IMGP7540.JPG
the wound coil is wrapped into very thin plastick-like material , and tightened close to magnets via thin straps between the magnets tips ( shown red on the edited picture above)
sound AWESOME , juicy and loud output, something like " single coil with humbucker output"
i just thought that this type could route out from earliest p90, but probably not then...