@kin nearly all big pickle jars come equipped this way in France. Not super environnement friendly since most people forget to separate it when they put the jar to recycling but very practical. Since I've moved here I've been puzzled by the lack of them.
@vincentbiret I think we put on a good show of how advanced we are here in the US, but it mostly is a show and doesn’t exist where it matters the most—like eating little pickles!!! ;-)