Hahaha, this is exactly what happened to me, this past summer. Yet with a little ingenuity, scrap yarn and quick thinking, and help from bean donating friends, I was able to get a number of bean bags completed.
Patterns????? For those who crochet, click here; and for those who machine knit, here's my pattern for the Bond or other bulky knitting machine.
These also make a great project for homeschooling craft days---or so my grand kids say! Try it...you'll like it! :)