Quests

Quests allow players to receive special awards. They occur for a limited time.

World of Luxury (May 2018)
The World of Luxury quest had four possible events: Leisurely Reflections, Tasteful Tea Tasting, Friendly Insights, and a cooking class. The Leisurely Reflections event offered 80 deluxe coins, and the others offered 25 each. The events could be repeated after a certain amount of time.

Participants could open boxes to receive random rewards. The Ornate Box cost 50 deluxe coins to open, and the Luxurious Ornate Box (which offered higher chances of rare items) cost 75 SimCash.

Quest_World_of_Luxury_Rewards.pngds
If the maximum number of an item had already been reached, then the reward was replaced with 2 bonus rewards, which were usually Simoleons or various tickets.
 * Home items: Luxurious Bubble Bar (2 maximum), Luxuriously Lavish Loveseat (3 max), Luxurious Hanging Lantern (6 max), Luxuriously Sumptuous Rug (6 max), Luxuriously Ornate Divider (8 max), Little Luxuries Plush Pouf chair (8 max), Luxuriously Elegant Mirror (4 max), Little Luxuries Accent Table (6 max), and Luxuriously Lush Tapestry (6 max)
 * Clothing: the Geo Boho Shirt for men, the Boho-Chic Tank Top for women, the Posh Printed Pants for women, and the Bounty of Bracelets for women
 * Miscellaneous: Simoleons, SimCash, Fashion Gems, and various tickets

May 2018: World of Luxury

 * Sims VIP: How to Complete the World of Luxury Event (Bubble Blower) in The Sims Mobile
 * Reddit: The World of Luxury Event Megathread