I learned how to make roses out of ribbons on our cruise. They're tough to make, but if you're careful and use nice ribbon they come out really beautifully. I was trying to look up the instructions, but I can't seem to find the exact style that I learned on the boat. I did, however, run across this beautiful bouquet:

While that's pretty, it's really DIY, and that's not me as an MBA candidate. I think it's pretty, though, if you're trying to save a little money but still want something pretty.

Personally, I want a combination of the long ribbons and flowers in these: