How can I light a fire ?- You could use a magnifying glass. How can I get my ball back ?- You could use a sack . How can I carry these balloons?-You could use a tray . How can I reach my key ? - You could use a coat hanger. How can I keep my hat dry ? - You could use a broken umbrella. How can I lace up my trainers? - You could use a piece of string.