Tell us about yourself!
https://www.mcmaster.com/7196k31 10 bucks. We make our own in industry all the time. I would also just buy some 16 awg 3 condcutor SJOOW cord. (this keeps you good for 15 amps) I found it here for 37Cents per foot http://www.sjoow.com/16-3-sjoow-300-volt-portable... Why would you risk an amature getting a light weight electrical cord and following your lead? If they do not check the wire gauge they can start a fire. There is also no telling what chemistry is going on with that epoxy and the wire insulation. Use a propper cord grip https://www.mcmaster.com/cord-grips