OldMtWoman
I found this at Hunker, its listed on a few other sites as well.
Homemade Caulk
The exact amount of baking soda and glue you’ll need will depend on how much caulk you’ll need. Assume 2 tbsp. of baking soda will make enough. Mix the baking soda with enough white glue (a craft glue works best) to create a thick mixture. Mix this in a bowl, on a plate or even on a piece of foil. Stir with a spoon or paint stirrer until the baking soda is completely dissolved and mixed into the glue.
Skimmed the thrift stores today, as I needed dishes. Found some, but the store was closing and I needed to pick through the stack. There were plenty and the store is open tomorrow.