'New' Camera

When my parents visited last week my dad very kindly gave me his old Pentax ME Super together with a 50mm 1.7 len, 28-70mm Zoom and 70-300mm zoom.
The 28-70 is full of fungus but the others are great.

So, do I:

Try and sell them? They sell for peanuts on ebay.
Buy an adaptor to use the 50mm lens on my EP1? I can already use a Minolta 50mm on it so this seems like a waste of time.
Drill a hole in the body cap and use it as a pinhole camera with film?
Buy a 2nd hand Pentax digital body so I can use the lenses? Waste of money as I have a DSLR already.
Buy some film and just use it as a film camera?
Give it away?