Are there any free tiles i can have?

Pulp is pretty amazing. I had my 7 year old son play with it. I'm trying to learn the scripting. I was wondering if there were any free open source tiles i can load just so my son can get creative and build levels. Thank you.

Check out the 2d art from
Lots of free game art and sprites that are under various licenses, such as CC0. One popular artist over there is Kenney, who releases tile sprites under CC0. You will probably need to edit, resize, and save as the proper format. Images need to be black and white and saved as your_file_name_here-table-8-8.png.
It needs to have -table-8-8.png