Here's what I did:
1) Grabbed a straight dress with pockets
2) Took 2 elastic headbands (don't laugh...I have a small waist, but something comparable will work as well) and wrapped them around my waist like a belt
3) Pulled the fabric thru the spacing between the elastic
4) Secured pocket accessibility and... there it is- Try it and Enjoy... Knock-offs I'm watching you.