Thanks Lola! Sometimes I use a heat gun (depending on the type of fabric I'm working with), but because of the sheer number of glue strings I was dealing with, instead of melting the glue back into the fabric, making the strings "disappear", they were puddling, causing it to look like droplets of water on the cereal. Can't have wet cereal, so I had to stick with old-fashioned hand-yoinking. Something a quick once-over with the lint roller will take care of.
Things I think of 5 minutes after I take down the light box... "Oh, I forgot to roll it!" ah well! Next puppet!