Free Block Patterns for download.
Nope I wasn’t that organised but they have very usefully been put online by Alison Dahl (cute work by the way). If you don’t know it BurdaStyle has a selection of free (and a number you pay for also) downloadable patterns and now they have basic blocks so you don’t have to digitize them in! You’ll need to register to access them but it is free. Some of the patterns are good and some pretty basic, as they are made by beginners and experts alike. Very nice resource and community however.
I use similar blocks in my zero-waste pattern cutting process in Illustrator. You might want to scale them to half size to make it easier if you use them in that way.