when visiting some friends at uni several years ago some of their freinds ~(i think the were french or belgian) used to make a roach from a half inch or so section of a pre rolled cigarette.
when rolling the spliff the cig section was squeezed and rolled so it was more compact but smoke could still pass easily thru it.
the end result was a roach end that was firm to hold and looked like the lighty end of a roll up.
anybody encountered this before?