ANOTHER great hobby.....metal detecting!!
I do mine at the beach...got a waterproof, (you can go diving with it...very cool!) Beachmaster. Paid almost a thousand bucks for it but I'm slowly recovering my cost. I've been using it about 2 beach seasons and I've already found over $20 in change! :laugh
Seriously, it's really relaxing to just walk along the beach, swinging the detector, chatting with the little kids and their cute mommies about finding "buried treasure", and every once in a while getting stopped by someone who needs help finding their keys that got buried near their beach blanket. The relief and subsequent smile on their faces, (believe it or not, this has already happened a half-dozen times!), makes that high original price tag seem all worth it!
Good times!