Existing literature on the commodification of punishment has yet to examine small penal history museums or related issues of tourism marketing, networking, and souvenirs. Bringing this literature into conversation with tourism studies, we examine how penal history sites attempt to attract visitors and generate revenue to sustain their operations. Drawing on findings from a 5-year qualitative study of penal history museums across Canada, we argue tourism operators use three strategies for the marketing of commodified punishment: authenticity, historical specificity, and exclusiveness. Our findings also indicate that networking between these sites is underdeveloped and that the souvenirs sold to visitors are an important source of museum funding. Overall, we show that the concepts of marketing, networking, and souvenirs can comprise a key conceptual framework for examining consumption in small tourism enterprises in Canada and internationally. Our findings also raise questions about how to theorize and investigate museum management, solvency, and profitability in the penal and dark tourism sector.