You can use the BlogEdit action (see the bottom of this page for an example) on any page and it will add at the top or in place of ##BEGIN BLOG a new blog entry with the current date and "Stuff" as the content.
Please only use it on real blogs though otherwise it'll just look silly.
You will no doubt want to include ##BEGIN BLOG wherever on the page you want the blog to begin. You can put content before and after that.
The code is based on BlogEditCode and my primitive knowledge of python
The actual code used here is at http://the.earth.li/~huggie/BlogEdit.py (just pop it in the actions directory under your Moin tree).