The origin of the current flag of Spain is the naval ensign of 1785, Pabellón de la Marina de Guerra under Charles III of Spain. It was chosen by Charles III himself among 12 different flags designed by Antonio Valdés y Bazán (all proposed flags were presented in a drawing which is in the Naval Museum of Madrid). The flag remained marine-focused for much of the next 50 years, flying over coastal fortresses, marine barracks and other naval property. During the Peninsular War the flag could also be found on marine regiments fighting inland. Not until 1820 was the first Spanish land unit (The La Princesa Regiment) provided with one and it was not until 1843 that Queen Isabella II of Spain made the flag official.
Most homes will have coloring pencils or crayons. In my house we also have glitter pens, foam pens and most importantly paints for the kids to select between. Using paints will require a little bit more setup time as you may need to clear an area and lay newspapers down over the table to protect it. This is the first place your kids can have fun. By letting them choose their pictures they will enjoy having the choice. Children like to feel they are big enough to make decisions and that their desires have an impact on the world, so let them browse the available pictures until they are happy. There are various advantages of coloring pages as opposed to coloring books. Coloring pages are cost-effective, costing you simply a couple of cents worth of paper and ink instead of a couple of dollars for a coloring book. Also, you get a choice with coloring pages, whether to keep a mess around to pick as you please, or only print them out as you want. With coloring books if you don't have any more you need to go to the store for additional books, plus they take up lots more room. If you find a given neat image in a coloring book and need more, you are required to either locate a copy machine or pick up various copies of the book for just a sole page. Any time you find a good image on a coloring sheet on the other hand, you could merely note it and pull it up to run off however many pages as you wat from without leaving home.