Thanks StanLee Wannabe!
I spent ages last night searching through forums and other sites trying to understand how everyone does the cowl / hood / mask! I see most people use an undermask mold, then put the cowl on either gluing it on the undermask or leaving it lose and finally attaching the frames. My folder on my desktop called "Research" is growing exponentially lol
I will use an undermask but will be looking for an alternative method, just to figure out what methods I can try!
Thanks for the info on urethane as well! Is it called Urethane Foam in the shop? I might put an order in or look at alternative substances I can source in the UK, B & Q and Wickies here I come lol. Have you used any other substances like rubber, silcone, plastics etc?
If I can't find anything I may have to resort to using fun foam that is used for kids projects
Spidey4Fun very kindly sent me the scarlet spider logo that he drew (thanks again btw!) and working on the hoodie for a comic con in london in April

I have spraypainted it (see pic)
onto the hoodie but really want to use 3D symbols for good effect.
My ultimate project is to recreate the jacket from the Leo Zelinsky design, although at the moment I may end up sourcing a tailor to make the jacket for me!