Obviously too much time on my hands today (literally !!). I set myself a challenge to see how small i could make the self-close box. For this I used Designer Series Paper and it is surprisingly sturdy. 3 inches high by 2 inches wide https://www.facebook.com/PapercraftwithCrafty
If you would like to place Tulips in a round Bowl or Vase, leave them without water for a night so that the stalk will soften and become flexible. After this one night, make sure to cut the Stalk diagonal and put it in Water in the Bowl/Vase. The stalk will now keep its shape as you put it.