I have the two channel switchable Mission expression pedal in black:
The SP-2 | missionengineering.commissionengineering.com
It's basically two pedals in one - you can assign it independently to control two effects, and the toe switch toggles the mode. I only really ever use it for a Wah, and am looking to swap it for the SP-1.
9/10 condition. $100 shipped, or straight trade for the SP-1.
Do you have the polarity reverse option?