Last year I bought some cute Valentine's fabric and had plans to make a couple of pillowcases, but I never got it done, so a few weeks ago, I pulled that fabric out and got them done. The kids were excited they will all have their own pillowcases for Valentine's Day.
twiddletails. It has great step-by-step directions along with pictures making it really easy to understand.
Fabric I used:
3/4 yard main fabric
12 inches large trim
1 1/2 to 3 inches for small trim
I used 3 inches for the pink trim, 2 inches for the white.