Step 2: Fashion An U Piece
In order to stop the slider coming away from the zip again we must replicate the effect that the tooth had in keeping the slider on the tape. To do this the DoomMeister used a small U section cut from the middle of a cotton bud. A small brass clip would be a superior solution
This U piece will not help the zip stay together, hopefully there are already enough teeth for this but will prevent the slider coming away again.