Amazon.com: tisino 1/8 to 1/4 Stereo Cable, 1/8 Inch TRS Stereo to Dual 1/4 inch TS Mono Y-Splitter Cable 3.5mm Aux Mini Jack to Jack Breakout Cord - 6.6 feet : Electronics
Stereo Mini 3.5mm to Mono 1/4" Jack - Phone to Mixer - Left/Right Summing Cable | eBay
Amazon.com: kenable 3.5mm Stereo Jack Plug to Twin 3.5mm Mono Sockets Audio Cable 15cm (~6 inch) : Electronics