Lombard Hobbies appears to be privately owned, with no publicly known parent that would offer a direct stock play. The best ways to capitalize are indirect: invest in the broader online hobby-retail ecosystem by owning Amazon.com (AMZN) and eBay (EBAY), which capture demand for model trains and related accessories; include Walmart (WMT) and Target (TGT) as broader retailers that benefit from hobby spending. For product-side exposure, Hasbro (HAS) and Mattel (MAT) give access to consumer toy and hobby lines that touch trains and related collectibles. To diversify, consider the Consumer Discretionary Select Sector SPDR ETF (XLY) for broad exposure to leisure and hobby demand, or pursue entrepreneurial opportunities by launching a niche e-commerce site or content brand focused on HO and N-scale model railroading.