To make your solution, mix 3 tablespoons of borax with 1 cup of hot water.
You can microwave several cups of water (1 cup at a time) and pour it in a large bowl. For faster results, you can boil a huge pot of water. Then, mix the borax into the water until it dissolves. Pour your solution into the large container with your ornaments!
Set your container aside, and let your solution sit for 24+ hours.