Postage Fees for Frontline Workers Face Visors

We are a group of volunteers who are making 3D printed face visors for NHS front line staff. Our philosophy is simple, the fight against Covid-19 is a real battle - we believe our front line troops should be equipped as well as possible. We can make over 60 visors per day but unfortunately the postage costs are too expensive for us to afford. We are looking for contributions to cover just the postage and packaging, we will print, assemble, address and post the visors ourselves. Obviously, these visors are needed urgently. Please try to give us a donation however small, we don't want to fall at the final hurdle.