Difficulty: 4
Paper Type: Square
Sheets: 1
Cuts/Glue: No
Time: 15 minutes
Source: happyfolding.com
Instructions:
Diagrammed instructions in PDF format can be found here. (They're not in English, but the pictures are still pretty self-explanatory.) Video instructions can be found here courtesy of happyfolding.com - I found them particularly useful for figuring out how to fold the shell.
