Take a zinger -- you probably have one hanging around that came on forceps or nippers. String as many spools as you want onto the zinger's line (I use 6) and then clip anything large enough NOT to go through the holes in the tippet spools (something as simple as a big paper clip). Voila! It holds all your spools snuggly and will extend out 24" or so to take off tippet.
And if you have a zinger the cost is ZERO.