I'm glad I took so many progress photos now so I could put this together. I love my keyblade so much! Might make another one, if I can be bothered haha. It takes a loooong time to finish, but I love the result. I made this in a week, and by that I mean a week without sleep. 
Give yourself 2-3 weeks 
My keyblade is super duper light, I even had people coming up to me at the con because they'd heard how light it was. Which is good for me, I wouldn't be comfortablelugging carrying a heavy prop around.
Most importantly, be careful! If you're new to super glue, craft knives, drills and what have you then get someone to help and take your time. We don't want any cut fingers or fingers glued together!
Feel free to ask any questions, I kept the tutorial quite basic so it wouldn't be a total bore to read. And show me what you've made if you use this, I'd love to see it!
for more photos, WIP and updates you can check out my facebook page
[link]
Give yourself 2-3 weeks My keyblade is super duper light, I even had people coming up to me at the con because they'd heard how light it was. Which is good for me, I wouldn't be comfortable
Most importantly, be careful! If you're new to super glue, craft knives, drills and what have you then get someone to help and take your time. We don't want any cut fingers or fingers glued together!
Feel free to ask any questions, I kept the tutorial quite basic so it wouldn't be a total bore to read. And show me what you've made if you use this, I'd love to see it!
for more photos, WIP and updates you can check out my facebook page
[link]
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I'd been thinking about making a keyblade out of expanding foam myself, but I had nooooo idea where to even BEGIN. And then I saw this tutorial on CNZ and though 'omgz my dreams have come true'.
I'll be using your tutorial for sure, but with maybe a few changes depending if they work or not. Such as builders fill to be slathered all over the outside of the keyblade instead of tape and paper mache. But I'll see how it goes. /Terrible procrastinator.
I'm making Oblivion and Oathkeeper for a competition cosplay(Final Form) so it deffo needs to be light weight. I'm so glad that you made this tutorial. xDD And I'll for sure show you a piccu if you want.
but Aqua will get more photos...
this IS a conundrum...
THE WONDER CHEF!
You see, after making my Kairi Keyblade I was dying to try another one (probably just the basic kingdom keyblade so I can rope a friend into cosplay) ... at the same time, my dad has been trying to make a mock up of a golf club idea he has (silly and seemingly unrelated I know) ... his idea came to using the foam that you have here, but neither of us could think of the best way to make the surface smooth and paintable. Gesso sounded like a good idea, but foam soaks things like that up >.< It's awesome to hear that even with all your layering that thick keyblade was still light though! This means we can use this process for BOTH of our projects. (and since it doesn't use "craft store" things I can even make one while back at college... where we have no craft stores nearby
So, TL;DR ... thank you! this is perfect for several projects and it's fantastic to know that putting so many layers on doesn't hinder you with weight.
I designed and made a Snow White keyblade for myself (before the BBS keyblade designs where available) and my keyblade is pretty heavy. Mine is made of solid wood which looks beautiful, but it's not practical.
I will be referring to this tutorial when I remake it.
And man, I love your keyblade so much >w<