I have a picture tutorial available here to make a Mushroom Manor for your Forget-Me-Knot or small doll. All you need is some worsted weight yarn from your stash, and some items that would probably end up in the landfill...cardboard and an oatmeal container. With a little embellishment from some patterns on my blog, you can end up with a sweet little hide-away for your dolls.
For the mini mushrooms and the stump, see my blog under 'Crochet an outdoor setting.' www.byhookbyhand.blogspot.com