Wedge a piece of florist's oasis into the low, round container.
Cover the oasis with moss by inserting U-pins through the moss and into the oasis.
Bundle at least three bamboo stalks together and secure them by wrapping any long narrow leaf around the middle of the stalks like you would a piece of string. Knot the ends and clip them off on the back of the bamboo. Insert the bottom of the bamboo into the center of the oasis.
Insert a 14-inch stem of orchids into the oasis in front of the bamboo. Insert a 10-inch stem of orchids into the oasis just in front of the first stem and slightly to the right. The stems should touch. Cut the third stem of orchids to about 7 inches and insert it into the oasis in front of the first two. It should be centered and touching them.
Insert the stem of the anthurium into the oasis to the right of the tallest stem of orchids. The anthurium should be positioned so that the tip of the flower faces to the 5 o'clock position.
Add black river pebbles to the container so that part of the moss is covered.