Do you have old light bulbs that are not broken? Instead of just throwing them away, you can repurpose them as some creative things. Check out this list of Creative Light Bulb DIY Ideas and try one of them.
Self Cleaning Betta Aquarium - Simply pour fresh water in, and dirty water is expelled through a tube and out of the tank while your fish swims happily within. There are no filters, batteries, or cords. *Mom can we get a betta fish*