I don't know how weird these hobbies are, but I enjoy them:

I design sailboats and build scale wooden models of them. I'm currently building a 60 inch unlimited class racing sloop. Um... let's see... I love to go target pistol shooting. I enjoy cooking. I'm a voracious reader. I love designing elegant but complex and user-friendly Excel software applications. I spend a lot of time every summer going on long-distance wilderness backpacking trips. I enjoy long distance canoeing. Oh! And I LOVE to go on unplanned and spontaneous journeys with no destination in mind and with no set timeframe or agenda... to just hop in the car and and go on an unplanned adventure... I just ask my wife, "Which way shall I turn, right or left? Or shall I just continue going forward?" We've covered most of the United States and much of Canada this way...

I'm sure I have more hobbies than that, but these are the ones that come to mind right now...

Dan