Part of the problem is the plethora of clipart available on the Internet today. If you do a search for restaurant food clipart, you'll get pages and pages of obscure images executed in a wide variety of styles. It's difficult, if not almost virtually impossible to assemble an effective brand building set from a variety of sources. The best solution is to find a clipart supplier that has pre-assembled sets executed by a single artist in a consistent style. One source, Toons4biz.com, has several clipart sets built around different types of food characters specifically designed for restaurant promotion. These cartoon characters include a chef hat, pizza slice, taco, beer mug, chili pepper, steak and others designed as a brand mascot much like the Jolly Green Giant or the Pillsbury Doughboy. Each comes in a clipart set with many versions of the character, and logo templates, so restaurant owners can build a robust marketing and brand building campaign around the character.
Using your old Christmas cards or some of your Royalty free Christmas clipart graphic images, select the pictures you want to use. Just print out and cut your selected Christmas graphic images. You will need three Christmas card regular sized images to make the Christmas placemat.
Computer programs work with image data in a number of different ways, for example programs like CorelDraw work with both Vector images (lines) and Bitmap images (pixels), CorelDraw is also the preferred program for making rubber stamps from images.