I think the top of a QS bed is 60x60, so I would probably cut up an old sheet (or join up newsprint paper) to that size, and sketch out the numbers on that. I would make the '8' 26x52 and the '1' also 52". For the '8' cut a 13" square of paper, and draw an arc, 4 of these will make a circle - you could make a smaller one for the top section. For the '1' cut a strip 12" wide by 52"
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Sorry, don't know what happened there, or how to fix.