J.S.
Okay, I have great ideas here. Take your daughter to a park or in your back yard and collect items you like to make a wreath. Twigs, pine cones, leafs, etc. Get a hot glue gun if you do not have one they are cheap and buy one, they have many uses. Glue twigs in a circular shape and then decorate all the rest of the items on the twigs. Very cute and in expensive.
You can take pine cones (we live in Colorado and black forest is full of them) if you do not have them in the parks you can buy some (they are cheap). Get glue which dries clear....paint brush.....and glitter (fall colors). Paint the glue on the leafs of the pine cone, then dip them in the glitter. Let dry and place in a basket on the table, glue them on the wreath, or place in a vase at the door.
You can also take a tall vase, get poperi (spelling?) and a strand of lights. Fill the vase alternating the poperi and lights. Plug in the lights and leave sit where you want. Very pretty ambiance. You can also get the foam fun things in a box. I have no idea what they are called, but they have pumpkins, leafs, and other fall decor for the little one to decorate on them. You can then hang in your window or do what you want with them.
The only other thing I can suggest is collect leafs, place them in the pre-laminate sheets of paper, press and seal. They would make great place mats for on the table. You could even cut out names and place in the sheets to personalize. Sorry this is so long....but I came up with things I think I am going to do! :) Just go my mind going....please let me know if you need anything or have questions.
Good Luck!