I, too, have been a big spray basting fan.
I make a lot of baby quilts (big, big family!) and always wash the quilts before gifting to remove all the spray and just normal dust and dirt. However, I recently learned on this board that 505 Spray (which I use) has to be removed by dry cleaning. So, I looked for other options.
I have settled on trying Elmer's washable glue diluted with water and using a misting bottle. I wanted to dilute it so that I wouldn't gum up my needle. There is a You Tube video available showing how to do this.
My mister is due to arrive today (I ordered a Misto) and will let you know how it works.