Doesn't look too difficult. Maybe one of the mods can set it up. On another forum, the mods had a different color marker.
https://developers.google.com/maps/documentation/android/marker
I looked all over for freezer paper - Walmart, Target, grocery store, etc. I finally found it at an Albertsons that was going out of business. Parchment paper works pretty good. Wax paper is OK too if you don't mind doing a little peeling.
Maybe you can find an inexpensive laser printer. I bought mine for $75 a few years back. I am a teacher and I used my laser printer to print on overhead transparencies. The laser toner doesn't smear like an inkjet ( the inkjet transparencies would smear if I tried to clean them between classes).