The Mesh Modifier has been around for quite some time, but only now I realised that you can create guitar picks with that! I wrote up a tutorial how to do that ( https://www.patreon.com/posts/guitar-pick-111834400 ) and added all the required base files here. For all non-patreon users, I also created a free online version in my online tabletop accessories generator: https://udos3dworld.com/AccessoriesGenerator/

The images used in the render are from here:
https://www.flaticon.com/free-icon/dice_246569
https://www.flaticon.com/free-icon/dice-cube_13500308
https://www.flaticon.com/free-icon/rock-and-roll_231707
https://www.flaticon.com/free-icon/fantasy_15623039