Why a one-time-use container that would then go straight into the trash? Most pickles are sold in recyclable glass jars with recyclable metal lids. It would take 10 seconds to pull a pickle out of a jar and stick it in a bag. If I wanted to carry a pickle, I'd use a bag left over from a doughnut I bought at the local supermarket bakery.

Regarding simple ingredients, organic, etc. - Kosher pickles fit the bill.