More to explore:
make curtains using twin sheets. I need to give these a try!
3 twin sheets & hula-hoop & rope - great backyard or camping play area.
4 pillows and 3 yards of fabric (or an old sheet?); Seen this before but this one has instructions. Good idea!
DIY collapsible tents. wood strips, pvc pipe, twin flat sheet
Cute pillow ideas!
sew pillow cases together, add your pillows for a fun soft floor pad, can easily be used to make fort walls
I love holiday pillows! This is a great one to make!
sweet dreams on fun pillows
Pink fox pillows
Twin Size: The Ruffle Quilt. Love that I can make a few of these and accent each one in a different color for each kid, but still match.