I made a pinhole projector by cutting a small round hole in the back of a cardboard box and flipping a white table on its side as a screen. Turns out I didn't need to cut the hole, as there was a gap in the corner of the box that projected just as good an image as the hole that I cut! Sky was mostly clear here in Birmingham, just a thin cloud layer. Solar radiation causes cloud formation. Therefore when the sun is blocked out, clouds are less likely to form, and more likely to evaporate, so the eclipse makes its own viewing hole in the clouds as it passes over. Pretty nice of it really!