We happen to get a ton of afternoon sunlight in our apartment, so when we were thinking about some Fall decor, we had a vision of the sun shining through vellum paper leaves...
We also added some brown leaves cut from grocery bags.
We ordered the brightly colored vellum paper (which is surprisingly hard to find in Fall colors) here in sample packs. Then we found a simple template online for the Maple leaf shapes, and set our husband to work. OK, we helped too.
Then we just stuck them on with scotched tape. It's fun watching the leaves change color as the sun moves throughout the day.