Urban Threads is another of my favorites. They offer free a free design every other week.

Just google search free machine emb designs and you can find plenty. Most all sites have at least some that are free, some that are on sale, etc. Juju right now has if you buy 1 set the next 3 sets are free and it gets better if you buy more. I spent 20 for 80 in designs. the largest part of my designs are free. I have a Viking and they have freebees as well, I'm sure most machines do. oregonpatch.com has lots of companies and once you sign up you get emails to all of the sales and you can get free ones. It'd be a long list to try to post them all in one spot. Just google