wrt ShishKabob recipes, I usually don't marinate, but found a great recipe from a guy named Big John who usually does a lot of cooking for the NASCAR crowd. Simply put, it goes like this:
There are two different types of ShishKabobs that I make:
1. Beef(NY Strip), mushrooms, and onions.
2. Chicken, cherry tomatoes, and red/yellow bell peppers.
Pour olive oil into a bowl and add KC Masterpiece BBQ seasoning to it. With a basting brush, liberally apply to the Shishkabob before putting it on the grill. Once on the grill, apply Montreal Steak seasoning to the steak Kabobs and Montreal Chicken seasoning to the chicken kabobs.
Grill it and you're done. The only real prep time is building the kabobs, but it's pretty tasty and I've made it a few times for the tailgate parties and just made them again last week for the games. For the chicken kabobs, I've renamed them Chiefkabobs due to the color.