Just made up this target, which includes the 8" version of the B8 target, along with 2 1" squares (the circles around the 1" squares are only 3" instead of the original 4"). This should print pretty close to exact size on a standard 8.5x11 printer. I test printed the PDF version, and selected "actual size" when printing, and it came out pretty damn close. Might vary a little based on your printer.
Link to a PDF version of the target:
https://www.dropbox.com/s/2zh0kkjbi6...ickey.pdf?dl=0
JPEG version:
https://i.imgur.com/AjIW0e3.jpg
And a version if you are printing on legal paper, didn't change the sizes of these elements, but added some of the small circles up top:
PDF Version:
https://www.dropbox.com/s/wjlkkdqh0g6c6a9/mickey_plus.pdf?dl=0
JPEG version:
https://i.imgur.com/kcHhybK.jpg
Horizontal version as well:
https://www.dropbox.com/s/oq56k2zkx9hj2cr/mickey_horizontal.pdf?dl=0
https://i.imgur.com/CZw0Ywu.jpg
Also added links to the .psd (photoshop doc) files:
https://www.dropbox.com/s/e5fyiys5tk...arget.psd?dl=0
https://www.dropbox.com/s/zmuycfdumc..._plus.psd?dl=0
https://www.dropbox.com/s/170leaq3p7...ontal.psd?dl=0