I use a hot glue gun a lot in construction particularly for making Foam board aircraft.
The glue gun is fast and foam friendly BUT they leak. At least I never saw one that didn't.
At long last I determined should do something about this so I designed a glue gun stand with a stopper to prevent or slow the glue leak.
Step 1: The Dimensions
These are the dimensions I used although you can alter them to suit your glue gun.
Step 2: Making the Stand
I used some scrap 5mm foam board and of course glued it together with the glue gun.
you could of course use ply wood if you liked.
The pictures are pretty self explanatory.