Do you cut and hot glue a lot of foam board? Do you have a lot of scraps that are too big to toss but too small for what you are doing?
Well, here you go. probably the simplest designs since the circle but very useful for scraping hot glue.
Included is one for sealing the ends of a single piece, one for sealing a stack of two, one for smoothing and removing the excess from inside 90d joints, and finally one for 90d outside.
Make up your own and add them here. Scale the last two as you like, the first two need to remain as is or scaled to your foam board.