These make me want to forgo making the pillow from the bulletin board fabric.
You can see there is a striped version in the same colorway underneath them.
These tablecloths are a cheap fabric option for pillows or some other small project:
Also of note: there are some cute things for little girls in the Valentine's clearance section at Target. Bright stripes, floral and heart patterned things like shower curtains and tablecloths and pillows. There are also faux fur throws in pink. Everything is 30-50% off.
Homegoods pillows: set of 2 for $29.99
Target tablecloths: $9.99 each