So Xenostan fans, there are dozens in Pennsylvania (my home state) of successful pretzel companies often sold nationwide, TWO of them are named Snyders (of Berlin, PA, aka Utz) and Snyder's (of Hanover, PA).
I like the idea of Stanley loving to snack on pretzels as a kid and Xeno carefully making sure he got the RIGHT Snyder pretzel brand EVERY SINGLE TIME when they hang out.
Xeno NEVER gets the wrong brand of Snyder's, and that's a small thing that Stan loves about him. He knows all of Stan's favorite brands favorites and has memorized their production process and their chemical composition down to the molecules. After the petrification and the Moon mission, Stan and Xeno are hanging out and then decide to revive the Pennsylvania "Pretzel" belt.