To make this: Grass

Print 4: http://pixelpapercraft.com/papercraft/4f928b5d7ee9da52680000a4/triple-grass-block

Plants

Print 8: http://pixelpapercraft.com/papercraft/4f1aae750b6e62331f000001/mushrooms-and-yellow-flower

Portal

Print 4: http://pixelpapercraft.com/papercraft/514cedfc01ef408864000075/portal-improved

This was my special project that I've been working on for a bit :D I hope you enjoy!