there is an easier way . take foam mats .... the kind you put on the floor and they interconnect . carve the shapes you want and glue them with crazy glue . Buy a product called plastidip . you can buy a spray on or brush on type . It will accept any color paint that is meant for plastic ..... the stuff is $20 to $25 a can but it has millions of uses .... automotive , you name it .weatherproof. It is the material you see every day ......it coats your tool handles for better insulated grip !!! Have fun , you can never run out of ideas for it .