Dave, I had never seen Chris Schwartz's Piggly No Wiggly (gelatin) glue before.  Interesting.  Does it act like liquid hide glue or does it have a gel point like HHG does?  

In the video on the link you posted, he said that he came up this idea after wondering if Gummi Bears could be used as a glue.  The answer was yes.  I may have to see what that is like.  😀

I also like the idea of making my own but of course they didn't share the ratio of salt to gelatin that they use.  I suppose you could make it just like mixing up a batch of HHG and not have a shelf stable liquid version.  

--Nathan, TX. Hire the lazy man. He may not do as much work but that's because he will find a better way.