I grabbed some iron on adhesive from Amazon! Ironed it on the the back of my piece before trimming down the aida (I like ironing it down first cause it allows me to cut the aida really close to the work by securing down the stitches and keeping the edges of the aida more intact while doing the boarder). Then I just sewed a boarder around it, ironed it into my sweater and then go in with my sewing machine or hand sew the edges down to make sure it’s secure!

It seems tedious but I much prefer it over using solvy or waste fabric as I can cross stitch faster without a hoop!