Have you seen the latest 3DS commercial, which is chock full cuteness? More importantly, it features Bowser Dad. If you haven't, you should. Not only is it good, it is also inspiring awesome fan-art—like the picture above, which was drawn by Rico.
But out of all the Nintendo characters featured in the commercial, it's Bowser Dad in particular that some people are fixated on, based on the fan-art that's floating around. It makes sense, too. I can practically imagine him telling me an awful dad joke while helping me build a fake volcano for science class. Look at his hair! And the glasses! So dad-like.