These are super easy to do. Borrowing an idea from Ali Edwards, who did this with a butterfly-shaped punch and papers she had on her desk, I stole this idea when we got slip covers for our living room. Pretty easy- using your choice of scrapbooking papers, punch the required amount of circles, then glue in place on the posterboard and slap it in a frame. I've also seen this done with larger circles modge-podged on a canvas, then some paint details added. It's inexpensive and you can use whatever colors work for your home.
We've since rearranged and now they're on a larger wall, so I'm working on a third piece. By working on, I mean, bought the third piece of posterboard for the project a month ago and haven't done any more on it.
Later today, I'm borrowing another idea, this time from Kari. I'll be posting a 'thankful list.' everyday this week, in preparation for Thanksgiving. What are your plans for the day?