How to make a Finn from Adventure Time Costume

My kids love Adventure Time on Cartoon Network. Here are the main characters, Jake the Dog and Finn the Human. (If you watch the show, you're probably now singing the theme song.)

A few months ago they decided that's what they wanted to be for Halloween this year. It was a pretty big commission, but they promise to pay it off in candy. Since the cartoon is relatively new, there isn't a lot of commercial reference material (toys, costumes, etc.) so I took pictures along the way so other people could get ideas and help making their Finn and Jake costumes too. Here's Sage as Finn:.

Here's how to make it:

For the backpack, find some light and dark green fabric. Felt holds it's shape best. You could also use fleece or cotton.

Cut 2 light green fabric rectangles 12 inches wide by 6 inches long. Cut 2 dark green rectangles 12 inches wide by 10 inches long. Flod these pieces and round the edges.

For the edge of the backpack: Cut one dark green strip 3 inches wide by approximately 29 inches long. Cut one light green strip 3 inches wide by approximately 20 inches long.

For the straps: Cut 2 dark green strip 5 inches wide by approximately 12 inches long (10 inches long if the backpack is for a child). Cut 2 light green strip 5 inches wide by approximately 10 inches long (8 inches long if the backpack is for a child).

Other things you'll need : One 16 inch zipper and one black button and some polyfil stuffing.

Sew the dark green edge strip to one of the dark green rounded rectangles 3/8 inch from the edge. Trim any excess.

 Sew the light green edge strip to one of the light green rounded rectangles 3/8 inch from the edge. Trim any excess.

Pin and sew the dark green backpack piece to a 16 inch zipper. Next, pin and sew the light green fabric piece to the other side of the zipper.

For the straps, sew the light green fabric pieces to the dark green fabric pieces. Fold over and sew 3/8 inch from the edge.

Cut ends at an angle as shown and sew one end closed. Turn the straps inside-out and stuff with polyfil.

Pin edges to the backpack front 3.5 inches from the zipper on either side (3 inches for a child's backpack). Carefully try on and adjust as needed. Sew straps 1/8 inch from the edge.

Next pin the back panel on and sew 3/8 inch from the edge.

Unzip and turn inside-out. Sew on the button and you're done!

Now for the hat:

For an ADULT hat hat, cut a piece of white fleece 13 inches long and 28 inches wide. Fold and trim an angle one inch in from the unfolded edge. For the face hole, cut an oval 3 inches from the top and 3 inches in. For the top, cut a circle 8 inches in diameter. For the ears, cut 4 fleece pieces 3 inches wide and 4 inches tall.

For an CHILD hat, cut a piece of white fleece 12 inches long and 26 inches wide. Fold and trim an angle one inch in from the unfolded edge. For the face hole, cut an oval 2 inches from the top and 2.5 inches in. For the top, cut a circle 7.5 inches in diameter. For the ears, cut 4 fleece pieces 3 inches wide and 3.5 inches tall.

You'll need some polyfil, cotton balls,or tiny fleece bits to stuff the ears.

Sew the back edge of the hat. Next, pin the circle on top. Sew it to the hat 3/8 inch from the edge.

With the hole in front and the seam in the back, fold your circle in half to find the midline.

Mark and cut 2 slits for the ears.

Keep hat inside-out and insert ears.

Sew 1/8 inch from the edge. Repeat with the other ear.

Turn right side -out and fold bottom edge under once and stitch a straight line around the bottom.

WHAT TIME IS IT?! 

ADVENTURE TIME!