get yourself a repair manual and find the wiring diagram for the fuel pump. splice the power wire and stick a toggle switch in between and hide the switch somewhere. when the toggle switch is "off" and you start the car, it'll start but only last a few seconds before it shuts off. make sure you put it somewhere where you can't turn it off by mistake cause that'll be pretty bad driving down the highway and have your fuel pump go off.

or you can find the starter wiring diagram and do the same thing with it, which is probably safer than the fuel pump thing.