K&K - Autumn Lights Festival To-Do by October 14th

Autumn Lights is a festival/fair in West Milford, NJ - 20,000 people go and it is my big "debut".

I need help with Payment Options  THIS IS SUPER IMPORTANT!!! 
1. paypal
2. venmo
3. credit card
4. cash and check (obviously)




(1) One time someone sent me a Q scan code that went straight to their paypal - can you guys figure out how to do that?

Also see if it is a thing for Venmo? FB? Apple pay? Google Pay? 

In my mind, I picture having a sign at my station with a printed Q code that people can just scan and use to pay.  

(2) How can I take credit cards? 

Square pay? (How does it work? What do I need? how much does it cost? What is the fee?)

Any other non - upfront cost way to take credit cards on the spot (i.e. without having them put in their CC on a website or something..) 

(3) do you guys know anything about apple pay or any of that stuff? Any other ideas? 

Basically it needs to be easy - when they are at the stand, as soon as they say "I'll take it", I want their money ASAP, ya know?

It has to be seemless - nothing worse than fumbling around while trying to get someone to buy your goods....


PS - do you guys know anything about 2 factor authentication? How familiar are you guys with Cryptocurrency? 

I invested a small sum (not a lot of money, but a lot to me!) and I even bought the trezor keep key thing - but never set it up.

While I finally have my mind around crypto currency algorithms and mining (how it works... solo vs pool vs cloud),  I see 2 factor authentication and I run - I'm sure its not difficult I just don't feel like figuring out ANOTHER thing.

But we can talk all about that stuff after the festival - its definitely pretty cool.