Occasionally in the past we've made a teepee for the kids to play in using a camera tripod but it's never been perfect because it's really hard to get a sheet, even a big one, to stay on properly. This day I, Ralph, had a brainwave. I used two of our sleeping bags, which of course are wider at the head, zipped together with the top of the tripod coming out where the feet would be. Worked perfectly!