Would these work?
http://www.amazon.com/Techflex-PTN0-25BK25-General-Purpose-Braided/dp/B004UHJCFI/ref=sr_1_5?s=electronics&ie=UTF8&qid=1450140244&sr=1-5
http://www.amazon.com/Heat-Shrinkable-Wire-Wrap-Set-24-piece/dp/B0042YUAR8/ref=sr_1_9?ie=UTF8&qid=1450142525&sr=8-9