Haven't cleaned the fretboard since i bought the guitar in 2015. Shame on me! I used a pick for the dead skin/dirt, and Dunlop fretboard-oil. : r/ guitars
8 Pcs Multi Colored Buffalo Horn Guitar Pick Hand Made High Quality Pick - Guitar Parts & Accessories - AliExpress
Exotic Guitar Skins - SkinYourSkunk.com
SkinTone Picks Review - Bass Musician Magazine, The Face of Bass