My favorite local hobby shops carried nothing like these at all and hazarding an online purchase for something that might not work for me was not a valid option. Oddly enough, this file is not for laser cutting or for 3D printing, but I thought I'd share it in the name of convenience and cost effectiveness. Other sets likely to follow once I get to finishing those armies.
It's a simple graphic file of WW2 armor insignia (in this case German and Soviet) scaled for my 1:150 scale armor collection. Still probably usefull at slightly higher or lower scales too. Anyone with enough skill and the right apps can scale or modify these accordingly. I have left the default paper size as 8.5 x 11 inches - oriented to portrait. What I've presented actually fits onto the Testor's Decal System using the transparent decal set described at https://www.testors.com/product-catalog/testors-brands/testors/tools/decals/ - These decal sheets are half-letter sized. This material should be easily acquired at your favorite local hobby shop or online. Follow the instructions provided by Testors for using their products. I take no responsibility for your errors. I'd experiment on white paper in draft mode to save on ink and to test your print resolutions and scaling before committing to the final product on the Testor's transparent decal paper.
I have skipped on adding white to the German Crosses since access to an inkjet that spews white is either impossible or very expensive and I don't want to sit there and cut out crosses forever from white decal sheets with scissors or an x-acto knife.
I have provided the PDF and a SVG file that I converted online at https://cloudconvert.com/vsd-to-svg. Shared as is.
And... as usual - If you are inclined to be more than a taker and a consumer, pay forward by contributing to this site, as so many others have before you, or perform a random act of kindness, or donate to a good cause when the opportunity next arises. If you liked it enough to download it I'd appreciate a LIKE, it helps get the word out and spread these designs around. That is all.