Good link. I made something similar to that when I was a kid but this one is better.
When I was 10, Dad bought a telescope that had a funnel-shape piece that fit on the eyepiece. It had white paper across the top and when you aimed the telescope at the sun, you could see it on that paper. What was really cool was you could see the sunspots as well. It was an inexpensive telescope but it was pretty good.
Eclipse glasses are in a desk drawer, ready to be whipped out IF we get lucky enough to have clear sky for a while next week. Not holding my breath but not giving up hope either. Once in a blue moon, good luck comes my way. LOL