Squeezable gravy … Heinz just made Thanksgiving leftovers way easier (and mess-free) by turning gravy into a squeezable condiment. The idea was inspired by the legendary “Moist Maker” sandwich from Friends – you know, Ross’ prized leftover masterpiece with that gravy-soaked middle slice of bread. Heinz Leftover Gravy bottles are available now, exclusively through Walmart.com.