Design 3 signs for mobile advertising

I have an urgent requirement for three designs for a mobile advertising board. The signs will be mounted on an A-frame on the back of a flatbed truck. I already have a single very rough design, but this tidied up and two other designs created. I have no preference on what application you use, so long as I am able to modify the text (you will see what I mean when I send the draft I have). I must have these three designs by the morning (UK time) - approx 12 hours from when I post this project. Should actually be fairly straight forward for someone with imagination.