I made some incredibly hard origami last winter for my Sophomore project (it was on Japan :P) so I thought I would like to share, as one big collage type picture ^^;; 
The Green one is my pride and joy O_O took roughly 3 hours to fold all 30 pieces then another 2 to assemble it ^^;; (it being only around 3 inches in diameter makes it harder)
The yellow is bigger and much easier to do, it took 40 something sheets i think, and roughly 2 hours.
The peeacock was made from a sheet 2 feet by 3 feet and turned out about 1.5 feet tall.
The cube took 24 pieces and was easy as pie :P
The stars in the corner are just your normal "Lucky stars" that I strung onto a thread.
I can try to find the instructions again if anyone wants them...
(you can see I like the designs with stars :P)

The Green one is my pride and joy O_O took roughly 3 hours to fold all 30 pieces then another 2 to assemble it ^^;; (it being only around 3 inches in diameter makes it harder)
The yellow is bigger and much easier to do, it took 40 something sheets i think, and roughly 2 hours.
The peeacock was made from a sheet 2 feet by 3 feet and turned out about 1.5 feet tall.
The cube took 24 pieces and was easy as pie :P
The stars in the corner are just your normal "Lucky stars" that I strung onto a thread.
I can try to find the instructions again if anyone wants them...
(you can see I like the designs with stars :P)