Monarch Merchandising offers imprinted custom t-shirts, hats, pens, mouse pads, mugs, bottles and more in Denver, Colorado Springs, and other Front-Range communities.. Whether you are looking for a specific promotional item or just browsing for ideas, our site is your one-stop shopping source. Monarch Merchandising is your complete source for custom apparel or promotional products in Colorado. From fun items to the traditional, you can easily shop for some of the hottest products on the market.