To make this heart pillow, I used a piece of grey sweat cotton fabric, a large heart paper punch and a few bottles of this fabric paint in neon/bright tones. Once I was done with the painting I let the fabric dry over the night and iron it on reverse the day after.
I chose to make an envelope pillow which is the easiest way to make a square pillow cover! There are plenty of tutorials on the web, you can use this one from the nice blog freshly picked.
And voila! Almost ready for Valentine's day!