I purchased my nail foils and foil glue from www.dollarnailart.com
You can definitely buy them at lots of other e-tailers also. Just google it.
I also have a more basic and more explanatory video tutorial on nail foils:
If you still have questions please leave them in a comment below and I'll do my best to answer them.
Keep in mind that regular tin foil from your kitchen will NOT work the same as nail foils.
Don't forget to check out my Youtube channel for WAY MORE nail tutorials!