There seems to be an abundance of acorns this year, so there shouldn't be a problem finding enough for this adorable craft.
A little hot glue and an old mirror can look new again. This new look isn't just for fall either. It is neutral (and cute) enough to be used throughout the year.
Have an old frame? Spruce it up with acorns!
Please note that the acorns will stick better if they are adhered to wood rather than directly to the mirror.