I have maintained for years that a person could make a fortune making accessories for the Weber kettle that Weber REFUSES to make themselves.
One accessory that I think should have been on the list is called a Kettle 2-zone. Some guy makes them and sells them on eBay for $50. They work perfect. I think it's one of the best Weber kettle accessories ever made. I just wished it was offered in a size that will fit a 26" kettle. I asked the guy if he would make one and again, just like Weber, - he refuses.