Let's Make Oobleck! 1  Mix 1 part water with 1.5 to 2 parts corn starch. You may wish to start with one cup of water and one and a half cups of corn starch, then work in more corn starch if you want a more 'solid' oobleck. 2  Mix in a few drops of food coloring if you want colored oobleck.
A cameo is a material that is carved with a raised relief which often depicts a profile of a face or a mythical scene. They are made most commonly out of shell, coral, stone, lava, or glass. The smaller carvings that are incorporated into jewelry are set in either gold or silver.
In all cases, the term proof always refers to a type of coin, or the way it was struck, and not to a coin's grade. The difference in the two finishes that you see on a proof coin is known as cameo contrast. This is where the devices on the coin exhibit a frosted finish and the field exhibits a mirrored surface. This is achieved by polishing the planchets before they are struck to remove any surface imperfections.