Hey, Navyss...
I was just looking for something to do to get me out of the house. I did have a homebuilt metal detector when I was in high school (many years ago!). I found it was interesting just to see what kind of junk you could locate and dig up. I never found anything valuable, but my old homemade detector was pretty crude. Hopefully the one I just bought will be at least marginally more sensitive.
Best of luck with your searches!