Switchcraft Jack, 1/4" Mono, Short Bushing – ToneShapers
File:Jack plug.png - Wikipedia
Switchcraft 1/4 inch TS Panel-mount Jack with Nut and Washer | Sweetwater
Mono-to-Stereo 3.5mm 2-Conductor to 3-Cond Adapter
Pure Tone Mono/Stereo 1/4in. Barrel Jack - Best Bass Gear
Mono 3.5mm Jack to Jack Cables - rhinocables.co.uk
1/4" Audio Jack - Mono Enclosed - Griffin Effects
3.5MM MONO JACK WITH SWITCH | All Electronics Corp.
Amazon.com: 3.5mm Mono Jack (Female) to 1/4" Mono Plug (Male) : Electronics
1/4" Enclosed Mono Jack, Lugs – Guitar Pedal Parts
Amazon.com: 3.5mm Female Connector Mono Jack 1/8" Inch w/Strain Relief Back Audio Phone Solder Terminal Metal Threaded Insert Black Plastic Handle 3.5 mm Mono Audio Phone Jack : Electronics
100PCS 6.35mm 1/4'' Phone Jack Mono or Stereo Type For Guitar Jack Type Instrument
Amazon.com: Monoprice Metal 6.35mm (1/4 Inch) Mono Plug to 3.5mm Stereo Jack Adaptor - Gold Plated : Musical Instruments