Our designer David Bartsch joins us on site at ... 's boatyard in Tulsa, Oklahoma and walks us through building one of his HBH-2 Hydrophones.
by Miss Tricks Mix
by JerryRigEverything
by DIY Crafts TV
by Alison Russell's Craft Channel
by IzzyBee Craft Creations
by Advicevice
by The Art Spirits