I make these wall calendars every year with one big image in the background or twelve themed images in alternating squares.
I note the birthdays of friends and relatives (and cats) with their name on the date plus a bright gold star behind it.
The artist “Monmon” creates (among other things) sometimes powerful, sometimes whimsical illustrations of tattooed creatures, especially cats. You can buy his work here. I sized, positioned and flopped this one so the cat’s face would be looking out from right near my birthday month, August. I love the delicacy and vibrancy of the color in the image, as well as the cat’s look of concentration. I’ve decided that 2021 is a “Year of Good Hunting,” and I am sinking my teeth into as many juicy rats as possible.