Somebody is actually trying to scam me...This is so cool

Years ago I taught a basic education class at the Salvation Army.  It consisted on educating seniors on how to use computers and how to stay safe from those who would like to separate you from your money.   Almost ten years later, my own advice is coming home.  It's a short story. 

Fraudster contacts me via email inquiring about using my services to service 6 laptops.

Fraudster requests a quote.  I send one back assuming the business proposal is legit (it is at this point).

Fraudster requests my address so that payment can be sent.

I get an email about a week later inquiring if I was still interested in doing the work (Not really, I'm really busy, but who can turn down legitimate work).  Fraudster requests that I confirm so that payment can be mailed to me. 

About a couple of hours later, I get a USPS registered letter with check for an amount grossly over the agreed upon price. (At this point, it is obvious to me what is going on, although suspicion was alerted days previous).

Email comes in with the scam.   Cash check, deduct my fee, send remaining funds via Western Union's Money in Minutes service.  Check is "Cashier's Check from a bank in Texas, Fraudster wants funds sent to a woman in New York.

This whole experience has been a hoot.  Still have the check, keeping it as a momento.  Stringing the fraudster along as long as I can.  I requested contact information in case something goes wrong.  Was told to just follow the instructions and everything will be fine.  Any ideas on how to string this along further.  I am fascinated by this, it's like my long time wish to see a ghost (hasnt happened yet) and finally seeing it.  I've never been "scammed", now I get to have fun with the attempt!  Oh, do not worry, at no point had I ever really considered this a real business deal, just want to play it out as long as I can.........Your move Jasmine Hines (the fraudsters name)