you will need
white crepe paper
black tissue paper
green crepe paper
small black pom pom
cut the white crepe paper into petal shapes and paint them with pink water colour paint, and leave them to dry
take the black tissue paper and cut three strips about 6 inches long and an inch wide, and cut lots of small slits on one side, then take the pom pom and add glue to it and then wind the cut tissue around it and glue it together and then roll up the end and glue it in into the straw.
then start gluing the petals on, do a layer of 3 petals then a layer of four behind it.
then cut a long strip of green crepe paper and add glue to the back and wrap it around the straw, covering where the petals join it.