Hey @VintageStarlette - the highest are the items obtained from special events. I found a chart here that might help 🙂
PARTY ITEMS
From The Sims Mobile Community
The highest awarding party element is now the basket ball. You get 75 points when you start playing and 75 points when you finish. So one game gives 150 points, and you can play for free! Takeing a dip in a buble bath is also free (you get 75 points for that), but you can only use it once in 6 hours. In contrast, the basket ball can be played again in 10 sec. Awsome!
The highest awarding party items will have a pink baloon to mark it. This is not the case with the basket ball, at least not in my game. You just have to know about it. So it’s kind of a secret. This is also the case for the karaoke machine (gives 75 points). I have never seen a baloon marking it, even after I have used all the other 75 points items.
So if you have a basket ball field: tell all your party guests about it!
Ooo, thanks for the tip, @KatlaStorm! That's awesome. I was on the fence about whether or not to keep the court up during a party because it's SO not in line with my House of Stars motif. 💎🎥💋 But for that kind of party XP, I'll make it work! *high-five!*
