Soak skewers in water for 30 minutes before threading shrimp onto them. Thread 3 to 4 shrimp per skewer.
Combine butter and garlic in a grill-safe pan. (Cast iron works well).
Place over indirect heat and melt butter stirring often. Place shrimp skewers over medium heat.
Baste with garlic butter mixture. Cook 3 - 5 minutes, basting one or two more times.
Flip skewers and baste with butter, cooking until shrimp are done.
Serve as desired.
Notes
To cook in the oven: To cook them in the oven I would brush them with the melted garlic butter and brush before broiling them. Broil for 1-2 minutes then turn and brush with the butter mixture again. Broil 1-2 minutes longer or until the shrimp is pink and curled.