looking at http://www.lufthansa-private-jet.com/main.html :
a return flight within 24 hrs between Germany and Switzerland in a small aircraft would cost 11'730€
A Cessna Citation CJ3 has 6 seats (not clear if one is blocked for the FA?)

6 return flights (DE-CH) - 70'830€
Assuming 6 pax per flight - 11'730€ per pax to achieve HONdom (<0.02€/mile)

questions are:
are the extra 40'000 miles really HON or pure award?
Is there a fuel surcharge on the base price on the website?
can 6 fly or crew needs one of the seats?
would all 6 pax earn the miles, or is there a max number that could?

looks interesting

GBM