“Get him a metal detector. You can find one for under $50.00”
???????
Real modern-day metal detectors start at about $600, go to $1200-1700 and can get up to $5K. If the kid has contemporary computers and video games, I don’t think primitivo is something he will mind-meld with. Also, the practice of metal detecting has certain aspects to it, namely strong patience....but real metal detector guys have to put up with either a load of pull-tabs and nails and bottle tops in public areas and/or have to deal with digging up plugs and then replacing them on private property or in parks and that may be beyond his responsibility horizon. I’m just saying, a kid may not appreciate the concept of searching all day to get 13 cents in loose change, even if there’s a silver mercury dime in there.
Just sayin’. I’m not intending to diss your idea.
I googled ‘ metal detector ‘ before I posted and saw simple examples for under 50.00.
Here is one.