For a holiday party: Fill balloons with water colored with food coloring. Set them out when it's below freezing. After they've frozen solid, remove the balloons and you'll have something resembling giant marbles.
DiY car airfreshner with young living essential oils. Soak wood in water then add drops of you favorite doTerra oil to the clothes pin! Easy way to freshen your car and change scents as often as you want!