To apply your suncatcher for the best results: 1. Select a window with direct sunlight—east or west-facing windows are ideal for sunrise or sunset rainbows. 2. Rinse the suncatcher under warm water. 3. Press the smooth side against the window. 4. Gently press down and wipe away any excess water. For the brightest rainbows, aim for lighter, nearby surfaces. To remove or reuse, simply spritz with water.