Why not get them to make a small one but put a twist in ink so it becomes a mobius loop
That way everying is on the inside and outside and the same time.
Or... Umbrellas you say?
Why not put an eruv around the brim of one. When every you feel the need to dodge the trickier parts of your sky beings demands just pop it open and carry on with your life.
*Kickstarters*
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Cerebus Sticky! Sticky! Stick! Stick!, Tue 18 Jul 2017, 14:52,
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