I have used a plastic bag from the grocery store to remove a wayward cork that got pushed inside the bottle accidentally but had not seen this "shoestring hack" before.
https://blog.wineexpress.com/wine-hack-get-cork-wine-bottle/?dm_i=219S,1PDXZ,5DXYUO,5THBY,1
https://blog.wineexpress.com/wine-hack-get-cork-wine-bottle/?dm_i=219S,1PDXZ,5DXYUO,5THBY,1