These items are rough and bulky and thus, you need several layers of mod podge to keep these on wood and to preserve it. You can use this on different materials, not just wood but it can save you time to learn how to use mod podge on wood as it is the most common.
Bond bamboo lawn rake wood
Smoking gun wood chips
Wood beam with lights
How to Decorate a Wood Crate Mod Podge Rocks
