Best way to sneak booze in to a day festival?

What's everyone's best way to sneak booze in to a day fest? We will still be hitting up the beer garden but at over 10 bucks a drink I def plan on attempting to sneak something in. Listen, wages are low, cost of living is astronomical. Don't judge me. 😆

I was thinking, mini bottles and shoving them in to an empty chip bag and revealing the chip bags. Or same with a Pringles container, top off with chips and reseal. Outside food is still allowed.