I have a great link. But you'll just cry harassment so there is no point. I believe there is a three pack of over powered laser on ebay. Check those out as they might be what you are looking for.
If you are looking for something cheap for your first laser try the ebay pens as cantthinkofone suggested. Also here is an awesome tutorial to make them focusable and the last page has a link to the ebay seller that has the correct pens. (Some have the same host but the internals are very different)
If you have any questions, just ask! This is a fun hobby and you don't have to spend big $$$ if you don't want to. Remember for burning you'll want some kind of eye protection as you've been told