My friends are going to a BTS concert soon. They are making outfits with a bunch of iron on patches and the like to wear special for the concert. I wanted to make them some crochet BTS logos to put on their jeans/overalls. I was inspired by this post on what to make. My question is how would you attach these if sewing wasn't an option. Neither of these friends are able to sew. I searched through the sub trying to find something, but all I could find was advice on how to attach patches on to crochet items and not the other way around.

If sewing is going to be the only way to do it, then does anyone have any suggests for something else I could make them for the concert?

Crocheting has quickly become my new favorite hobby! 🧶💕
My biggest struggle, though, is my tension. It’s very consistent and my stitches look neat, but I crochet really tight. I usually have to go up one or even two hook sizes just to meet gauge.
For those of you who used to crochet tightly, what helped you loosen your tension? Any tips or habits that made a difference? I’d love to hear what worked for you!