Plumber And Electrician Smilies
I have declared these images Public Domain and can be downloaded commercial use from my profile on Pixabay (https://pixabay.com/en/users/billithecat-7996303/).
Electrician Smiley https://pixabay.com/en/graphic-electrician-electricity-3929446/
Plumber Smiley https://pixabay.com/en/graphic-plumber-emoticon-3820382/