thanks snuggly.
I am sewing it into the seam of the bodice so might keep it somewhere super safe until ready to do it.
I need to get the right needles anyhow - just checked and only have universal and 1 stretch (i supposed stretch could work though). and some good thread.

will aim to do a fine rolled hem on the arm holes though to finish it off... oooh i hope it works out haha... i hate having to repeat things!