these are the threads I know about…
poly (obviously) 
nylon
silk?
cotton (maybe)
rayon?
I am thinking about making a small batch of strings and maybe selling them for a small profit (im broke 
)
any I missed? (needs to be usable for yoyo string) 
Yes you can use rayon.
Ive never heard of silk string.
You forgot kevlar.
thanks man, also is it possible to find glow threads at hobby lobby?
is it possible to find any others besides the ones listed? ???
I haven’t tried, but I think Nomex and Polyurethane would work.
Iv’e seen glow thread at many local craft/sewing stores in my area
But I’m not sure about whats in your area
