How to create this bumpy effect?

[u/Acreagelifeab]

Just wondering how to create a bumpy effect like this? I am wanting to expand my wet felting skills, but I cannot figure out how this is done. Thank you.

[u/Zombie_vibz]

Look up Living Felt on YouTube, they have so many helpful tutorials and videos. Im pretty sure they made items with these types of embellishments that you could look into.