The first project is this awesome and creative straw chandelier. All you need is wire and a handful (or 120) drinking straws. Once you have these you can start creating! You can find this idea and instructions at Design*Sponge.
The next idea is this awesome Happy Birthday Cake Topper! The ideas for this can be endless, you can use any trophy topper, any color, and any decorations you want. Also, why stop at Happy Birthday, you can create a Wedding, Christmas, or any other holiday topper you want!
A personal favorite of mine is this pencil/art supply holder. All you need is different cardboard tube holders cut to different sizes. After this is complete, you can fill it up with paintbrushes, pencils, pens, and any other art materials you have.
Finally, using plastic bags you can create these stylish and trendy bags. You can find complete instructions on instructables.com
Happy creating and have a great summer!