I rummaged around the different cuts of meat for something interesting, and found a wide flat cut called a brisket. And, oh, am I glad I did!
For the meat:
1 C water, plus more to cover
1/4 C worcestershire sauce
1 Tbsp vinegar
1/2 tsp chili powder
1 Tbsp brown mustard
2 minced cloves garlic
1 cube beef bouillon
1 cut beef brisket, trimmed of most fat and cut to fit in your crockpot, if necessary
Put the beef in the crockpot. Mix all the sauce ingredients together and pour over the beef. Add water to cover the beef. Cook on low for 12 hours or more. Shred with a fork and serve on buns covered in BBQ sauce*.
* I made my own BBQ sauce, but I'm not 100% happy with it yet- it was too sweet- so I'll post the recipe later when I'm content with the results