Musician's Friend has a sale today on the Dunlop DVP1XL Volume Pedal, which can also double as an expression pedal. The pedal is on sale for $59.99, basically half off its usual price of $119.99
Create incredibly smooth volume swells or control your effect pedal parameters with the Dunlop DVP1XL Volume (XL). Solidly-built in an aluminum chassis with aggressive non-slip tread, the DVP1XL is ready for the road. Our patent-pending Band Drive allows for a smooth range of motion without the fear of breakage or change in feel or range, and for maximum comfort and precision, the DVP1XL's rocker tension is fully adjustable.
When using the DVP1XL as an expression pedal, you can use the internal pot to set the minimum level of the parameter you're controlling with the rocker. If you want to reverse the function of the heel-down and toe-down positions, the DVP1XL has an internal switch that allows you to do so.
Along with Volume, FX and Output jacks, the DVP1XL also features a convenient Tuner output for silent tuning onstage.