Royal Brites Poster, Foam & Project Board Customization Materials such as borders, stencils, Transparency Sheets that can be printed Mirror Image with Free Iclicknprint or Adhhesive Printable paper. Print them using free Iclicknprint letters and numbers. Great for home, school and office projects. Choose colorful borders, stencils and free online letters, numbers, shapes, and more to create your poster projects and make them stand out from the crowd. Plus, you save lots of time and money!