I haven’t invested in a glue pot yet. I use a Rival Hot Pot Express. It’s about $12 at your favorite housewares retailer. I put my glue in a mason jar and use it as a double boiler. The major inconvenience with this set up is you have to add water to the pot occasionally as it evaporates. This hasn’t been inconvenient enough as to where I wanted to spend $100 or a glue pot though.
Plus a small mason jar is pretty easy to hide in the fridge if your significant other may be opposed to having a copper kettle of gelled dead animals next to the cold cuts.