Yesterday and today I did some fat quarter dyeing in large plastic SOLO cups. Yep, you read that right. I soaked fat quarters in water about 1/2 hour and then squished half in the cup, leaving half hanging out. I mixed dye powder with salt and soda ash and 1/2 cup of hot water, stirred it a lot....Red just doesn't want to dissolve, next time I will filter it thru panty hose. I poured 1/4c of the dye in the cup, scrunched in the rest of the fabric with a popsicle stick and then added the rest of the dye. It cured for an hour, rinsed until the water was clear then threw them all in the washing machine and the dryer.