The Wheel of Fortune represents good fortune, luck, and felicity, all things that Sam wants for himself.
I can easily imagine Sam having a Wheel of Fortune as a game show host if he ever became one!
And who's dressed as a playboy bunny on the side of the wheel? It's Sam! It's a wink at the outfit Sam wore in the Sims @saminsims4 for Halloween 2020.
In the Rider-Waite-Smith deck, there are four astrological signs representing the Four Evangelists, but I didn't have space to put them in and I didn't want to make the piece too crowded. So we only have Taurus and Leo, which fit him. Although Sam's an Aries, Taurus fits him because he likes material comfort. He also has many Leo qualities, such as desiring attention.