One of my very favorite mugs is from Anthropologie. It’s floral with a monogram “P” and it just makes me happy. I also have loved picking up a hand-crafted mug in a place or two on our travels around the world!
My particular mug is old and out of stock, but here is one that is fairly similar with bright floral lettering. I also LOVE the bright colors on the inside of those mugs!
This one is also pretty and has a similar floral + monogram feel but more muted.