Glue gun is a great tool for crafters. It joins and fixes materials and things. Another genius thing is to use the glue gun adhesive for creating textures, making stencils, jewelry and molds.

I have used it to create textures and shapes on my altered bottles projects and the results are fantastic. 

You can actually try it on a flat surface first to know how it actually works out for you in terms of flow and speed which is important to get the desired result (shape).

On my first project, I created some abstract lines on the bottles and filled in the spaces created with gesso textures, lace, and decoupages with paper in-between.

For the second project I randomly created circles of all sizes with the glue gun on the bottle. Since I was trying to create a ocean and sea life inspired bottle, I added sea shells on to them. The base done in sea blue and the circles highlighted with copper and bronze have really stood out and the complete piece is a marvel.

For my next project, I let the beauty of the random circles get accentuated with just depths of various shades and colors. And the result is again one of its kind.