From Yellow Sign Studio
PDF – Free
Lasercut MDF accessories and obstacles to throw down on the table with your favorite auto-carnage games. Scaled and designed for 20mm or 1:64th.
Lasercut patterns in PDF, AI and SVG formats to mass produce assorted variations of start/finish lines, posts, banners, vehicle barriers, corner ruins, lamp posts, and a cell tower. I use 3mm or 1:8th inch MDF or you may use similar lasercut materials. Templates are sized for Arch C (18 x 24 inch). There is a decent safety margin around these templates so that your laser doesn't run off and try to bang around the edges. With the right apps (Inkscape, Illustrator, etc.), you can likely extract individual cuts to reconfigure or resize on a different sheet size.
The depicted vehicle is at ~20mm scale for reference and is not included in this file. All you are getting is the pattern for lasercutting the accessories.
Colorized key in PDF format has been included to show you which parts go with which.