Wire Money Detectors Suggestion

+1 why the fuck not sounds cool let's see how quicky people will start abusing it

That's the great thing, you can't abuse it.  When money is in contact with the prop with it, the detector just outputs a value. It doesn't actually store the money, just the value of the money.  It's like putting something on a scale and how it outputs the weight, except the something is money, and the weight is the amount.