If you’ve ever seriously considered using a meatball grilling basket, go ahead and smack yourself upside the head right now.
Hot Dog Roller
What You Already Have That Makes This Unecessary: a grill
"Stainless steel rollers keep the dogs elevated off the dirty grill grate, and keep charring flames away from the hot dog surface." ... AKA make your "grilled" hot dog taste like you boiled it.
Source: bedbathandbeyond.com
Basting Sauce Pot & Brush
What You Already Have That Makes This Unnecessary: a normal cup/bowl/container + a brush.
Also LOL because that weird metal disc on the brush handle would make it really difficult to actually see where you're putting said brush.
Source: williams-sonoma.com
Potato Grilling Rack
What You Already Have That Makes This Unecessary: a grill.
Are your potatoes hella hella tiny? No? Okay, then, it's unclear why they would require a special contraption to support them.
Source: bedbathandbeyond.com
Himalayan Salt Plate
What You Already Have That Makes This Unnecessary: salt, plates.
Not only is it confusing, it's impermanent: "Plate can be used repeatedly until it eventually diminishes with use."
Source: williams-sonoma.com