In a vase of flowers at the craft store. Do you know what I'm talking about? If so, what is it called and can I buy it in a craft/hobby store. There was a vase w/ flowers in it and they were set by this hardened like gel substance that made it appear as though the flowers were sitting in water. Please tell me how I can do this. Can I buy this kind of "stuff" in Joanns or Michaels or is there some homemade version?