I know you have a new machine and you are anxious to sell wares from it, but it generally is much more difficult to grow your business from that angle. Most customers do not care about what machines you have, they just want to know if you can be a reliable source for print / sign work. Focus on your existing customers, who already use and trust you, to market this new machine to. Try something unique - printing on different types of substrates, etc. Phone cases, etc are kind of a commodity item that will be hard to make much profit from. You should get some return on this machine by simply replacing methods of fabricating signs (vinyl lettering, digital vinyl prints, etc) with direct UV printing. You will save on materials and labor. Work on higher margin work like printing onto brushed metal, back print acrylic pieces, etc. That will fit into your wall graphics work very nicely. The best way to grow your business is to become an expert in design, consultation, and materials / fabrication method recommendations. Learn as much as you can from industry magazines and resources. Get good at graphic design. Provide fair quotes quickly. Provide excellent customer service. Nail these things down and the work will come to you.