But does it come with a guarantee of answered prayer?

It’s a gift that keeps on giving.

You can adopt a nun to pray for you for an entire year!

And the money you pay goes to a good cause.

When the Salesian Sisters needed to raise money to care for their aging nuns, Sister Mary Rinaldi realized they could charge folks a small sum for work they were already doing

“We could offer our prayer and our support and our friendship and that solidarity with them and that’s how the adopt a sister program began.”

At first, the program raised $5 million to build this retirement home in North Haledon, New Jersey.

Now, over a decade later and 3,000 participants strong, Adopt-a-Nun continues to pay the bills for the elder nuns, and reaches farther than they expected.

“We have encountered a huge population of people who are hungry for God and for the spiritual, and it’s not only Catholic persons or Christians who are adopting a sister, from the Jewish population, we have wonderful human beings that are part of the program and very integral.”

[…]

But Rosesanne James is convinced that her nuns do more than keep her in the fold

“It’s a direct line to God and it’s cheaper than any phone call.”

[…]

And, they make great gifts.

“Can’t have enough nuns and I give them for birthday presents, Christmas presents…it’s better than a scarf.”

(via)
Read the rest here.
BTW, Christians don’t have to pay someone to make intercession for them since Christ lives to make intercession for those who draw near:

Hebrews 7:25 Consequently, he is able to save to the uttermost those who draw near to God through him, since he always lives to make intercession for them.
1 Timothy 2:5 For there is one God, and there is one mediator between God and men, the man[1] Christ Jesus

He paid the price already.