Kyle Williams got condolences.

Brandon Jacobs got cash.

As it turns out, Williams wasn’t the only participant in last season’s NFC Championship Game who has since received heartwarming fan mail from a kid.

This week, Jacobs, who signed with the 49ers in March, received a letter from Joe Armento, a 6-year-old Giants fan who enclosed $3.36 from his piggy bank. The reason? His mom told him the Giants didn’t have enough money to keep Jacobs on the team.

Since little Joe is just starting to read and write, his mom typed her son’s message to Jacobs, which read: “Dear Brandon Jacobs: So you could go to the Giants, here is my money. Love, Joe”

Jacobs shared the letter on Twitter on Tuesday, writing, “I almost cried, I am still trying to hold it in. I may have to pay him a surprise visit.”

On Wednesday, Jacobs revealed his plan to pick up Joe at his house in New Jersey and, along with Jacobs’ 5-year-old son, head to Chuck E. Cheese’s.

“That’s a special thing and I wish every athlete could get that feeling,” Jacobs said today. “I want to do good and go out there and do the best I can for little Joe. After thinking about it since it happened, I’m going to remember this for the rest of my life. When I go back to Jersey, we are going to have some fun together.”

In January, Williams received an I-still-believe-in-you letter from Owen Shure, a 7-year-old 49ers fan in Los Angeles, after his two fumbles in the 20-17 overtime loss to the Giants. Shure’s letter, written as the first-grader was in tears, was an Internet sensation.

“Dear Mr. Williams,” Shure’s letter began, “We just watched the Playoff game. I feel really bad for you but I wanted to tell you that you had a great season. you sould be very proud, so I wanted to say thank you.”

By the way, Owen’s father told me in January that his son was blissfully unaware Williams wasn’t guaranteed to play with the 49ers in 2012.

Not surprisingly, Michael Shure is rooting — really hard — for Williams to survive final roster cuts this summer.