I recently made 4 placemats and I feel your pain. Not sure I could make eight of the same kind! The first one is a creative exploration, working it all out, being surprised and pleased by the result. The second one is just rinse, repeat.
Being bored by making the same thing again always makes me think of my grandmother, who had 7 daughters, including a set of twins. She made all the girls' clothes and always made the twins identical dresses. My mother told me that her mother said the first twin dress was fun, the second one a chore. But she continued to make their dresses alike......probably just grumbling a bit on the second one!