Today I digged out my Boss SP-1 Spectrum - I use this pedal to get some kind of "single coil" snap with both knobs turned to the right.
And of course some cocked wah sounds are possible with this parametric eq. Cool pedal, but unfortunately more overpriced than the Keytone Exchanger ever will be 
Here is a short example of the Boss SP-1 (and what a simple 1 knob eq can do). First unaltered, next spanky, than cocked wah:
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