I have found a perfect work mug.
ISAK Leaf Cup with an oak lid. I am constantly getting distracted and leaving a half cup of tea behind, only to return to a luke-warm cuppa. The oak lid is added to keep warmth in and I also think it's a nice stylish touch. I certainly prefer it to normal thermal mug options.
Another fun find on Cloudberry Living was these Sami Rinne Angel, Bat and Deer mugs.
I like the idea of something fun - but am I batty or an angel? Somedays it's hard to know!