Amazon.com: Stemedu 8MB Sound Recordable Module Button Control Programmable Voice Chip, MP3 Music Player Kit, USB Downloadable Musical Board for DIY Audio Stuffed Animal Toys Greeting Card Music Box : Electronics
Amazon.com: weishan G433 Aux Cord Compatible with Logitech Wired G233 / G Pro/G Pro X Gaming Headsets, 3.5mm(1/8") Audio Cable with Inline Mute & Volume Control, 6.6ft : Electronics
Used cosmic audio for Sale | HifiShark.com
Cosmic Cables - Impressions and Discussion Thread | Headphone Reviews and Discussion - Head-Fi.org
Archimago's Musings: DIY: Archimago's Colorful Set of Speaker Cables. (And about that Darko/McGowan "EXPERT" interview on USB cables & other claims.)