Mark Shiner 
Mark Shiner (Selkie Strings)
Mark resides in Scotland's Orkney Islands, and offers the 4-string acoustic/electric Micro Mandolin, which he claims is the world's smallest travel mandolin. It features a full-size scale length, a headless neck with hidden internal tuning system, a high-quality bridge pickup, concealed volume and tone controls, and a carbon fiber–reinforced maple neck. For more information, visit Mark's Web site.