yes, you can use word. I have a basic design which im currently using. I will email it to you if you like... It has got me a good load of work so far which you can change/adapt to your own if you like, or just redesign it yourself.
Thats to print on a4, making a5 landscape flyers, black & white, then just cut in half.
of if you have a5 paper, its much easier - you can change your printer to a5, put a pile of paper in there and print it straight off from there. My printer does 12 a minute so i just get loads of cheap a5 from ebay, and print it off in the hundreds.