The pointy sleeves on Professor McGonagall's dress robes

So to start with I took my sleeve sloper pattern (see my tutorial on how to do your own!) and raised the sleeve head by four inches to give me a point of 2inches when the top is folded over, the pattern was only used to the elbow line.  You can see in the picture where I extended above the original pattern. 

I originally cut out a toile to test the theory of how to make the point.  Folding the sleeve in half to find the middle and then folded down in my best origami fashion.

I repeated the folding over and created a nice neat point

Then pinned the whole thing onto the robe to see if the theory worked!  I was surprised to see it did, but it needed some interfacing to make it stiff enough to hold up.

Moving onto the actual fabric I repeated the process but added in a triangle of interfacing under my origami shoulder.

All pinned securely into place it was time to hit the ironing board.

And press so there are really pointy points!

I hand sewed the seam to try and get it as invisible as possible.

Then realised the sleeve was to floppy to the outside and had to put interfacing on that too, luckily I am using the iron on stuff so I was able to add it without too much difficulty.

It has made a really sharp point that gives the effect I was looking for!

So here is where I am at, two rather nicely pointed sleeve heads!

I now need to add the lower sleeve, buttons and hem it all together and then I have one costume finished.

Oh Minerva...how....why?

I am a little bit obsessive sometimes.  It tends to be a detail on a costume that I really can’t work out and then I spend hours looking for images on Google to figure out how it is done. 

This obsessiveness has reared its ugly head with those pointy bits on the top of Minerva’s sleeves.  I have looked at many pictures and I can’t see a seam, yet I cannot figure out how on earth you could have that there without one!

What I want to say is ‘oh come on woman, it really doesn’t matter, it is just for World Book Day not a competition’, but what actually is going through my mind is ‘how did they do that?’ and I just can’t let it go!

I have made a couple of toile’s of sleeves to see if I can figure it out that way...nope.  I have gone over and over in my head and searched for a picture of that sleeve that means I can actually see if there is a seam in it.  It’s annoying me now.  So if there is anybody out there that can either tell me how you do it without a seam, or that there is categorically a seam in it, please let me know before I drive myself (and my husband) insane.