商务计划
goal：sale special bookmark
solution: add chinese traditional elements to bookmark, like bookmark made in paper to use chinese folk elements,(plum, orchid bamboo, chrysanthemum), wooden bookmark use hollow-out design, it can also add twelve chinese zodiac signs, and poems may be also welcomeed.
cost: a series of paper bookmark
contains four ¥4
contains eight ¥6
a series of wooden bookmark 10-15
income: paper bookmark ¥8 ¥10
wooden ¥25-30
