2

One practical way to do this might be to loop the rubber band over one end, and to then twist it before looping it over the other end. In this way the parallel lines combine to become one. This would not work well with "fat" rubber bands, but should be fine with regular rubber bands.


2

You could cut open the rubber bands and tie loops/knots at the ends. Downside of course is that you'd have to manually tie the knots for however many you need. EDIT: It occurs to me that it's possible to tie knots without cutting them in half, then just make sure the rubber band go on one side of the pegs. Probably eaiser this way, too.


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