[Arran]

Rich;
  I have been saving cardboard tubes from rolls of plastic wrap and aluminum foil for just such purposes. They are great for making repro "toilet roll" electrolytics like they used in AC/DC sets, or even larger repro paper caps with the smaller kind. The trouble is that I now have way more of these tubes then I could possibly need, what I need are some smaller diameter ones like they use on wire coat hangers for making smaller paper caps.
Regards
Arran