I often use bamboo skewers to grill kebabs or veggies. Soak wooden skewers in water for 3-5 hours to prevent them from burning. Metal skewers are reusable and they work well too. Just ensure your metal skewers have plastic/silicon/rubber handles to hold them. You don’t want to grill your hands accidentally!  Also, use flat skewers, not round ones, to prevent the meat from sliding out.