"They have to be leak-proof"
Well--not indefinitely. How long are you going to nurse a shot of artisnal, organic, vanilla-infused milk??
It does seem like a mini-muffin pan and some cookie-dough are all one would need.
Or you could get a sleeping bag and camp out on Spring Street for the next 11 days until you make your way to the front of the line and enjoy the privilege of buying 2 of the 'genuine' version.
You think, what do you want?
You think, make a decision...