One of our local radio station here in the Bay Area had a morning radio show called the Dog House. J.V., Hollywood and Elvis were the hosts and they would have everybody laughing during the 4 hours or so that they were on the air.
Every morning, listeners would make requests to prank call somebody they know, and most of the time Elvis would take care of the prank call. The dude is hella talented and came up with all types of characters to trick these people. So look out for some of these.
Here's a prank call with Elvis calling a lady who is moving into a condo. Comedy.
Here's a prank call with Elvis calling as a finance guy.