Edit 6/6/17: I would like to thank Clayton aka Uncle Jessy for the kind words in his video.
I will be honest...I have watched all his videos. He is a very talented Youtuber and artist. You can support him on his Patreon site like I already do:
This is a Gotham City manhole cover drink coaster. I thought it would be a great addition to someone's man cave or batcave.
I made two versions a clean and a weathered version.
I design props and costumes mostly. I am not an engineer nor a trained artist. I learned almost everything from watching Youtube videos and just messing around in designing software. I started designing with Fusion 360 in August 2016.