Tuning simplest FM to 93.5MHz
While the handmade inductor in this project will most definitely vary from any 'nominal' value we can compute (if you have a meter with inductance measuring, that would be very helpful), here are a few calculators/resources which should prove helpful for giving you a 'starting point.'


Coil Inductance Calculator  
RLC/LC network Resonant Frequency Calculator  
LC Network Antenna Tuners


Keep in mind that a 7" copper wire is far from the resonant length for any FM signal(resonant length for a 93.5MHz quarter-wave antenna would be around 32"), so what you're trying to achieve with the inductor, 2 capacirors &amp; 1 resistor is:


A radio receiver (tuner) to select and decode the station you're listening to;  
An antenna tuner to 'bring down' the impedance of that stubby antenna to a usable value;
An impedance matching output to drive your headphlnes, or the input of some form of audio amplifier.