Has Anyone Tried a Mystery Box Subscription Model on Shopify?

Hi everyone,
I’ve been researching different recurring revenue models for Shopify stores recently, and the mystery subscription box approach caught my attention. It seems like a strong option for increasing retention while also creating a more engaging customer experience.
From what I’ve learned so far, a successful mystery box subscription usually depends on a few key things:
• Choosing a clear niche audience instead of offering a general surprise box
• Making sure the perceived value is higher than the subscription price
• Offering flexible billing cycles (monthly seems most common)
• Building a strong unboxing experience that customers want to share
• Using a subscription box mystery format to introduce new or slower-moving products
Another interesting benefit is that some merchants are using a mystery subscription box as a way to move excess inventory without relying heavily on discount campaigns.
I also came across a strategy guide explaining branding and checkout setup ideas for launching this type of offer on Shopify:
Has anyone here launched a mystery box subscription on their store? I’d be really interested to hear what worked best for you, especially around retention after the first couple of months.