Several inventors have addressed the problem of safely watching a total eclipse of the sun. One of the earliest is U.S. Patent No. 548868, which issued October 29, 1895, on an Apparatus for Observing Eclipses:

This patent is long ago expired, so feel free to adapt for your use on April 8, A more modern device is disclosed in U.S. Patent No. 9123285, which provides a Transparent Display Device and Transparency Adjustment Method Thereof, which explains:

U.S. Patent No. 11438494 on a Device for Viewing and Imaging the Sune and Solar Phenomena, the augments a user’s smartphone:

U.S. Patent No. 10103768 provides a Mobile Device Casing that includes a filter 304 for photographing solar eclipses:

U.S. Patent No. 11536947 on a Tunable Window System for a Vehicle, that can adapt to “local conditions (e.g., solar eclipse). 

Solar eclipses have inspired some to make games, like U.S. Patent No. 5678823 on a Total Solar Eclipse Game of Skill:

Others have named plants after solar eclipses, as in U.S. Patent No. PP23647:

The technology is there to have a safe viewing experience. Enjoy the April 8 solar eclipse.