Build Your Own Clone is a DIY guitar effects company founded by Keith Vonderhulls in Moses Lake, Washington. The business grew out of Vonderhulls' earlier kitchen-table operation Big Tone Music Brewery and was formally licensed in 2005. BYOC supplies do-it-yourself stompbox kits that reproduce classic vintage and boutique circuits — the earliest kits were Fuzz Face, Tonebender, and Rangemaster clones built on point-to-point eyelet boards. Kits ship with pre-drilled PCBs, blank enclosures, organized components, and illustrated PDF instructions aimed at builders of all experience levels.

The catalog spans overdrives, distortions, fuzzes, modulation effects, compressors, and utility builds, along with guitar amplifier kits, replacement parts, and accessories. Representative kits include the Classic Overdrive, Classic Compressor, Crown Jewel, and a free Confidence Boost kit intended as an introductory build for first-time solderers. Pre-built versions of many kits have also been offered for players who want the circuits without assembling them.

BYOC is regarded as one of the longest-running names in the online DIY pedal-kit space, with a builders' gallery and forum community that developed around the catalog. Vonderhulls has generally framed the company's appeal around accessibility — compared the process to following a recipe — and the kits are widely used as an entry point into pedal building and circuit modification.

BYOC has 18 products cataloged on Equipboard, including Fuzz Effects Pedals, Boost Effects Pedals, and Distortion Effects Pedals. Their gear is featured by 1 artist, with the strongest followings in Rock. Notable users include Jesse Lacey.