Supplies
1 yard of fabric in main house color (red for Gryffindor, yellow for Hufflepuff, blue for Ravenclaw, or green for Slytherin)
1 yard of lining fabric
1 yard of fusible interfacing
Thread in secondary house color (gold for Gryffindor, black for Hufflepuff, bronze for Ravenclaw, or silver for Slytherin)
Embroidery floss in secondary house color
Embroidery needle
Embroidery hoop
Initials printed in Lumos font
Sewing machine
Exacto knife
Transfer pencil
Iron
Ironing board
Scissors
Instructions
Cut out all pieces according to Figure A below.
Iron the interfacing onto body, gussets, and strap according to the manufacturer's directions.
Flap
Download the lumos font and print out the letters that you need.
Use an Exacto knife to cut the letters out and then outline the letters onto the center of the flap with the transfer pencil.
Use embroidery floss to outline the letters.
Now fill in the letters with the embroidery floss.
With right sides together sew 3 sides of the flap outside to the lining, leaving the top side open.
Turn right side out and press.
With secondary color thread sew the same 3 sides of the flap about 1/4" to 1/2" (0.64 to 1.27 cm) from the edge. This will give it a nice contrast and use both house colors.
Pockets
Fold the pocket piece in half lengthwise, with right sides together, and sew 2 sides.
Turn right side out.
Press raw edges in and pin to lining fabric.
Sew the pocket to lining on one side.
On the other side, sew the pocket on along with a few smaller pockets for holding your wand and quills.
Strap
Fold the strap piece in half lengthwise, right sides together, and sew long edge.
Turn right side out and press.
Using secondary color thread, sew the edges of the strap the same as you did to the flap, about 1/4" to 1/2" (0.64 to 1.27 cm) from the edge.
Piecing it together
Sew the gusset pieces together at the short ends.
Pin right sides of the gusset pieces to 1 piece of the body and sew.
Pin and sew to the other side of the body.
Repeat with the lining, leaving a 4" (10.2 cm) opening at the bottom between one body piece and the bottom gusset.
With right sides together pin the flap to the back of the bag.
Pin the strap to the sides of the bag.
Sew on flap and strap.
With right sides together pin the bag outside to the bag lining (I usually place the outside ot the bag inside the lining bag). Stitch the top edge.
Using the the part of the lining that was left open, turn bag right side out. Sew this hole up.
Press bag and top stitch around opening.
Add flare and you are ready for a sucessful year at Hogwarts!
Final Product
Credit
© Nasreen's tutorial was taken with permission from her LiveJournal.