I opened up one of the spare Ghibli slips I had and scanned that into the PC so it could be used as a template. Then I scanned the standard Nausicaa sleeve. Using a combination of the two scans and quite a few hours editing in photoshop I produced the artwork for the Nausicaa slip. I then took the file to my local high street printers and they printed it onto a silk 200gsm card. I then cut out the artwork using a scalpel. The trickiest part was folding it correctly. What I did was place the existing slip next to the flat Nausicaa slip and using a ruler mark the position of the folds. I scored the back of the slip so it would then fold easily without creasing. I'd left a flap at one end of the slip and using double sided tape stuck it together.