I just did a Google search and came up with these selections:
https://www.google.com/search?q=Free...utf-8&oe=utf-8
There was an older episode of F&P and their guest speaker just made blcoks a little larger than after pressing them, she trim them down. She also mentioned to slow down to achieve accuracy. There is also a monthly "Quilters Magazine "Bitty Blocks"". You might want to sign up for the thread:
http://www.quiltingboard.com/quiltin...s-t259348.html.