The tulip was an experiment and didn't work out very well.
I found a stack construction paper at Sam's Club for under $10.00, so these flowers are very inexpensive to make. I used one inch wide, 12-inch long strips and glued various colors end to end to make the individual petals.
I crimped ALL the strips before looping or rolling. The crimping technique (as explained in my book) seems to make the pieces easier to work with, plus a bit more sturdy.
Thanks for looking!