While building the Lack-enclosure I stumbled upon a height problem that had me having to shorten the tables foot. Since the Lack table is mostly made out of cardboard and thin air, sawing its feet leaves an ugly hole in them. This small part covers it and also gives it a nice look!
I printed it in PETG on my Ender 2 Pro and it fit perfectly. If it doesn't for you, you might have to scale it up or down a little bit.
The author marked this model as their own original creation.