Charlotte Hornets big man Cody Zeller has started a lemonade stand to raise money to keep All-Star point guard Kemba Walker in Charlotte.

Walker becomes an unrestricted free agent this summer. The Hornets can offer Walker the supermax contract this offseason, a deal which would pay Walker around $221 million over five years. The most money Walker can get from another team on the open market is roughly $140 million over four years.

Check out the exact dollar amount Zeller has on his lemonade stand:

This is great. Zeller is doing the job that the Hornets front office should be doing. The citizens of Charlotte need to get to Zeller's lemonade stand as soon as possible.

Walker averaged 25.6 points, 4.4 rebounds and 5.9 assists per game this season while shooting 43.4 percent from the field, 35.6 percent from beyond the arc and 84.4 percent from the free-throw line. The Hornets, though, missed the playoffs. Walker has only made the postseason twice in his career with Charlotte since entering the league back in 2011.

The New York Knicks and Los Angeles Lakers are expected to pursue Walker this summer. The explosive scorer wants to stay with the Hornets and finish his career in Charlotte, but winning is Walker's number one priority.

The Hornets' brass has to acquire more talent this offseason and show Walker they are committed to winning.