If you are interested in my reviews/comparison of the Stampendous Creative Palette vs. the Gelli plate, read them here.
Making Gelli Plate Tools
Some of the images tell you all you need to know – some you can click to go to the post. Hover over the image and see.
The coolest texture plates, which (if your shop allows tear-off samples) could be FREE. Anaglypa textured wallpaper:
Making Paper and Fun Foam Tools:
This post has many paper and fun foam tools, including:
This post has more!
Other tools to make:
Cut your own stencils with your Cricut and report cover plastic