I've been making face coverings using the brilliant pattern from Dhurata Davies
When I looked for ealstic it quickly became clear that there are a lot of folk asking silly money for something that costs pennies. We added a roll of this to our last wholesale order, so an 80cm length (plenty for a face covering) is 30p.
If these are widely needed I'll order more, so for now no more than 8 lengths per order please - that gives more people a chance to get some and that feels fairest. Just elastic can go by large letter post - so £1.50 for the UK.