Ok, i think the mason jar thing is a no brainer! Put condiments and burger toppings in antique mason jars and then arrange them in an antique crate for a picnic themed baby shower! Wouldn't bacon look so cute peeking out of one!
When I take my out of oven, I wrap each one in wax paper and then aluminum foil. They stay soft this way and then you can remove the wax paper, re-wrap in foil to heat as you want them or eat them cold.