A method for recycling plastic and manufacturing filler involves collecting discarded plastic articles, and grinding/shredding the articles up together without substantive sorting out of the articles by plastic type, color, etc. The plastic articles are shredded into shredded plastic particles which are used as filler for various consumer products, such as weight training equipment and cushions. For products requiring additional weight, higher-density shredded recycled plastic particles are added to the filler for increased weight. For products requiring less weight and/or buoyancy, lower-density recycled plastic particles and/or foam is added to the filler for decreased weight/density. Medicine balls, pet training devices, cushions, pillows, flotation devices, ski racks, and other products may be formed using the filler.
