Since slimefun have been broken for sometime I think it would be a great idea to put wind staff in vote crate or any crates at spawn. My next idea is to add Shulker box to rare vote crate or higher. My last idea is to add a /boat command. It will give you a boat every 10hour like a kit.
tbh I think the only item worth adding to the vote crates from slimefun is the air staff. I would 100% support adding that to the vote crates. Although if there is anything else that's very good from slimefun, correct me if I'm wrong