Waterfall created by using a hot glue gun.
DIY Hot Glue Heart Pendant--Hot Glue Gun #Crafts Ideas More
Glue Gun Snow Flakes | http://diyjoy.com/hot-glue-gun-crafts-ideas
Best Hot Glue Gun Crafts, DIY Projects and Arts and Crafts Ideas Using Glue Gun Sticks | Creative DIY Ideas for Teens http://diyjoy.com/hot-glue-gun-crafts-ideas
Hot Glue Gun Art - Spray painted with Metallic Silver, distressed with black paint and highlighted with a Red Glaze.
Attach a ball pump needle to the tip of your glue gun to extrude a finer stream of glue.
Using hot glue to create costume jewelry spray painted gold or any color you need to match your project.
DIY - Old Lightbulbs Turned Into Hot Air Balloons - (In Portuguese, but easy to figure out by the pictures.)
Distress Watercolor Dry Embossing. See source for details.
Hot Glue Gun Art - Spray painted with Metallic Silver, distressed with black paint - giving it an antique metal look.