The company who published almost all of my professionally/traditionally published comics work is Slave Labor Graphics, also known as SLG Publishing. I did a 2-page comic for their 20th Anniversary, which was a while ago. But every time I come across it again, it makes me laugh, so here:
I also did another 2-pager for an online anthology celebrating SLG's... 25th? I think. I sort of wasn't paying attention. But here it is: