Are you looking for a computerized version or a paper verion. For a computer version you might check out the digi scrapping shops as posted on the digital scrapping FAQ post. If you want paper mouseheads, my first suggestion would be to see if you have a scrapbooking store near you that will allow you toi use there cricut for an amount of time. Get paper and use a Mickey crat to cut the number you want with a few extras just in case. You could also buy a Mickey Head punch depending on the size and number you want.
Rebecca