PRINTING ON FABRIC...
You can purchase sheets to run through your printer but I have only found them in white, and natural colours. This same thing comes in a roll that you can cut to your size so there's less waste.
OR you can use the spray adhesive like she did, but the BEST solution I found was to use FREEZER PAPER
To do this you cut your freezer paper about 1/8-1/4 of an inch bigger than your fabric shape, and Iron the waxy side to the wrong side of the fabric, then you can run it through your printer. Just peel the back away and there you go! I like this because the spray glue can be way too messy, and a little hard to do if you are in a confined space. You want to make sure to align the project properly to make sure you arent going to have a bunch of mistakes... I usually just cut a template the same size as my fabric and run it through the printer, just to make sure everything is centered and the size that I want, sometimes I do this five or six times... better safe than sorry especially since youve already spent time cutting your fabric, and making sure its the right colour and all that jazz. Just another option to think about! Let me know if you have any more questions.