Amazon.com: 3.5mm Stereo Male to Dual 3.5mm Mono Male Audio Cable, 1ft 3.5mm 1/8" TRS Male to 2 x 3.5mm 1/8" TS Male Y Breakout Cable Splitter Adapter for Headphone, Speaker :
Movo Photo WGA-1 Mono 1/4" TS Male to Stereo 3.5mm TRS Male
Amazon.com: Disino 1/4 Mono to 3.5mm Stereo Adapter, Gold Plated 6.35mm TS Male Plug to 1/8 inch TRS Female Audio Connector - 2 Pack : Electronics
Stereo 3.5mm Mini Male to Dual Mono 1/4 Inch Phone Males Y-Adapter Cable 10 Feet
3.5mm Mono Plug to 2x3.5mm Stereo Jack Adapter
Mono-to-Stereo Adapter Corrects Missing Sound from 1 Side
3.5mm Stereo Male to 3.5mm Mono Female Adapter (TAA Compliant) | Audio Adapters and Couplers | Adapters and Couplers | Audio Video
3.5mm Mono to Stereo Adapter Mono Male Plug to 1/8" TRS Stereo Female Jack | eBay