How fun is this???

 

http://stampwithheather.typepad.com/stamp_with_heather/2008/09/how-fun-is-this.html







Here are the basic dimensions that I used.  Not sure what else is out there for patterns as I just eyeballed this one.....

Pumpkin Pie: 8 1/2 x 7 1/2 scored at 2 inches along the bottom and the two sides (two of these are needed...these are the front and the back of the package), 3 1/2 x 5 1/2 for the flap scored at 2 inches (I used the Coluzzle to curve the flap front)

Create a tab from the bottom two 2x2 squares on the pumpkin pie cs by cutting one edge of the square off.  These two pieces of Pumpkin Pie make a bag front and a bag back that assemble together.  After they are attached, I creased the bag as you would for a 2x4x6x8 box.  Then attach the flap from the back.
Designer Series Paper: 3 1/4 x 6 1/4 for the front and 3 1/4 x 3 1/2 for the flap.  I used magnetic snaps to hold the flap down.  Have fun!