We all love to show off our budding Picasso’s latest work of art, but would rather not have pinholes in the wall. The solution is toothpaste! It must be white toothpaste. Dab a little on the back corners and your masterpiece will stick to plaster and Sheetrock because of the cellulose gum in the toothpaste. When it’s time to replace with another creation simply wipe off the wall with a damp cloth.