I made a small change purse to practice before making a larger purse-size version.
I used some Red Heart yarn I had leftover.
Here's roughly the pattern I used, based on a few different versions I found.
1- With a magic ring, dc 12 stitches.
2- 2 dc in each dc of first row (24 dc)
3- dc in first dc, 2 dc in next dc, repeat (36)
Double chain to the height you want, finish off
Make a chain of around 40 single chains for the tie. Weave through ends as desired.
It's a pretty quick project. I finished in less than an hour.