Instead of Tenugui, I hand sewn another version of produce bag with another 100% cotton fabric found under the curtain section of Daiso. Like the scallop border, so I sew the bag without drawstring loop to keep this design intact and simply seal the sides using the blanket stitch.
Reinforce the bag opening by going through the fabric with several repeated stitches using contrasting colored thread.
And they turned out nicer than I thought.