Hello. There is a basket tied to a rope that is hanging from a ceiling. The rope can handle over 100 lbs. without breaking, but I need the basket to fall when 15 lbs. of items are placed in the basket. I want to cut the rope in half and tie each sliced end of the rope to something that will break when 15 lbs. (or more) is applied. What will work? Thank you in advance for your help.