Party Saver Pillows
Send sleepover guests home with pillowcase favors that will remind them of fun memories for nights to come. 
Materials
Prewashed white pillowcases
Felt-tipped fabric pens
Cardboard 
Step 1: During the party, pass out the pens and pillowcases. 
Step 2: Kids can create their own individual pillowcases with drawings and favorite slogans. They may even want to pass their cases around for everyone to autograph. 
Tips: Slip a piece of cardboard inside each case to keep the ink from seeping through to the other side.