This lid is designed for the Solo Stove Mesa Tabletop Fire Pit. It provides a snug fit without scratching the Mesa's surface, yet remains compact enough for the whole unit to be stored in the travel bag. When storing, it best fits with the burn ring turned upside down. The lid is there to keep any leftover ashes from spilling out while the fire pit is in the travel bag.
This is not designed for the XL version but could be easily modified and scaled for it. Additionally (it should go without saying…), this should only be used on a cool, unlit can.
Designed in Fusion 360 and tested on an A1 Mini.