Grill sausages or cook in skillet on the stovetop as directed on package. Keep sausages warm.
Place each topping in a separate serving container.
For the Hawaiian Dawg salsa topping
Lightly pepper the pineapple and red onion and grill until tender. Chop and season with sugar, salt, and cayenne pepper. Place mixture in serving bowl.
For the Mexican salsa topping
In a bowl, combine the corn, jalapenos, cilantro, lime juice, olive oil and chilli powder and toss well. Place mixture in serving bowl.
Brush garlic butter on the buns and broil for 2-3 minutes.
Serve sausages in bun and have your friends mix and match toppings.