Amazon.com: YOKEPO Pegboard Combination Kit with 4 Pegboards with 15 Accessories Modular Hanging for Home Office Wall Organizer, Crafts Organization, Ornaments Display, White | 22" x 22" Peg Boards Wall mount :
Amazon.com: Socalsunny Pegboard Wall Organizer Kit 4 Boards 14 Piece Accessories Combination Hanging Peg Board Wall for Home Office | 22"x22" White Pegs for Hanging : Industrial & Scientific
IKEA Wall Storage - YouTube
Wall organizer from IKEA for ~$60 (parts list in the comments) : r/MechanicalKeyboards
DIY Ikea Hack: A Genius Wall-Mounted Wooden Organizer