I made one out of wood. 1" x 2" for frame with a piece of 1/2" plywood for the top. I made the frame 3 sided so I could use the cover as a lap table. I like to have things multi-purpose.
I put cover on the floor while traveling. When I use the stove I put the cover over a small folding cabinet extension I have on the bed side of the kitchen cabinet, making the usable surface larger.
Joy A. & Olive
and "Puff", too