You can buy ready to use personal checks for your private use and for making mails and stationeries fun to use and entertaining to employ. There are various personal designs which can be used on such personal checks for making it special.
You can pick up flowers, bees, butterflies and leaves and incorporate them into your company's personal check and make them entertaining for your clients. It also adds elegance and refinement to the otherwise mundane and routine transaction and other orders of the company. They are cheap yet qualitatively much improved variety than to what you will get in the market.