coloring pages to cut out

I need a printable file of a rectangular box measuring 4 and 1/8 by 10 and 3/8 inches that contains images that can be colored like a childrens coloring book in landscape format. Hopefully can fit 2 on a standard paper of 8.5 by 11 as each will be cut out by children after coloring and fit into an opening at the above mentioned size. Not too simple as this is for kids to adults ages 6 and up, Prefer several choices from various themes-monsters, animals, etc.