Hand-operated air-blowing tools and implements for blowing fiber optic cables into ducts and conduits, and hand-operated tools for manually assisting the pushing and pulling of fiber optic cables into ducts and conduits; hand tools and implements for fiber optic installation, namely, air-blowing hand tools and implements for blowing fiber optic cables into ducts and conduits, and hand tools for manually assisting the pushing and pulling of fiber optic cables into ducts and conduits