When Ian Usher wanted to make a short film using his dog, Baxter, as its subject, he really wanted to take some underwater shots of the dog swimming. Rather than invest in an underwater camera and attendant housing, however, he decided he’d just make the housing himself. Using a borrowed Panasonic camcorder, some plumbing pipe, a piece of glass, and some sealant, Usher made his housing for $19. Here’s how he did it: