No idols. Keep the Sabbath. No worries:
Leviticus 26:1-2 Do not make idols or set up carved images, or sacred pillars, or sculptured stones in your land so you may worship them. I am the Lord your God. You must keep my Sabbath days of rest and show reverence for my sanctuary. I am the Lord.
It’s all too easy to think Just this once won’t matter. These things show what’s in the heart: setting up an idol of anything, and worshipping it, does matter, even if it was just this one. Failing to show reverence for God, His Sabbath rest and His sanctuary, also matters, all the time.