Creativity is not the sort of thing that you can force, no matter how hard you try to make it so. However, that does not automatically mean that it is some sort of precious resource that only a chosen few would be capable of accessing with their natural mental faculties. Quite on the contrary, we would go so far as to say that creativity is an inherent aspect of the human psyche, so all you really need to do is unlock your own specific form of creativity and see where things can go from there on out!
If we were to take the example of Metal Kards, incorporating some creativity into the design can be a great deal easier than you might have initially feared. One thing that you can try out is to use an offset logo placement. Most logos are placed in a straight line, and while that might be somewhat useful and practical, suffice it to say that it is not the only option that is at your disposal. You can also try to make it every so slightly off kilter, since this would imbue it with some originality.
Don’t take this to mean that that’s your only outlet for creativity either. Business cards can be treated as veritable works of art, so you should never hesitate to add a splash of color here or there. Fancy designs can also take the cards to a whole new level, so the addition of patterns can be a useful way to create a design that will blow the socks off of anyone that bears witness to them. Professional designs don’t have to be boring.