Need 20G lid ideas

[jessanddanny]

I've had a 20 gallon tank for the last 9 years with a regular hood and light on top. My fat cat keeps jumping on it and cracked the glass under the lights. What options are there that preferably don't have glass??? It's right by a window with tons of natural light so lighting is not absolutely necessary. Just need a cover to keep the cat out, fish in, and cutouts for the filter and oxygen lines. Thanks in advance!!