You can download free books basically only four are free, its a shop related to origami you can purchase origami paper,books and other stuff.

here is the link. 


Now this is my favourite website about realistic origami. you dont need any folding skills here just download the part and assembly instructions and print them out and cut, fold and glue it and your master piece is ready! 

here is the link  


This website is not related to origami is requires teqhnical skills. they provide instructions for making to toy planes at home you can buy the Kit or collect them at home then just follow the instructions, you can also buy the spare parts for your plane, they also provide a designing online software to decorate your plane.

Here is the link

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