Supplies: Glass or Plastic Ornament, 2 or 3 colors of acrylic paint, paper cups.
Before project day, rinse the inside of ornaments with a mixture of 3 parts water and 1 part vinegar. Rinse ornaments with clean water and let dry thoroughly (at least 24 hours).
Drizzle three separate stripes (1 for each paint color) down the inside of the ornament. Place ornament on a paper cup and rotate every few minutes until paint has completely covered the inside surface. Only a few drops of each paint color are needed. (Using a medicine dropper works well. Or, cut a straw and use the tip to get paint in the ornament.)
Turn ornament upside down into cup to drain excess paint for 24 hours. Let dry 5 days. The ornament will continue to marbleize as paint dries.
Some nice color combinations are:
Red and Gold and Pale Gold Gleams
Blue, Pearl and Silver Gleams
Green, Dark Red and Gold Gleam.
Gleams are acrylic paints that gleam with a metallic or pearlized sheen when dry.