Thanks my friends @eb801, @johnb, @airbum and @mornem!
Yep, Eric, I never throw anything! It's amazing how helpful a dungeon can be!
I use stretched sprue of various sixes, doing various things, even prop shafts. I have even stretched a qtip, to make a hollow mini tube (well, not that easy!). Of course, as a means, it has its plus and minuses. One of the pluses is that, being styrene, it can be laid at place and then firmly "attached" there by been lightly pressed with a thin paintbrush that had already been dipped in ultra thin styrene glue. Oh, best of all, it's zero cocstly and readilly available, you will never run out of stock!