Wendy’s is helping to celebrate the 25th anniversary of 'SpongeBob SquarePants' with a special “Krabby Patty Kollab” cheeseburger and a “Pineapple Under the Sea” Frosty flavoring. For a limited time only, customers can get the Krabby Patty meal, which is the same as a regular cheeseburger but with an additional slice of cheese and a “top-secret” Krabby Kollab sauce. The pineapple Under the Sea Frosty combines Wendy’s beloved vanilla Frosty with a swirl of pineapple-mango puree. The theme treats will be available starting October 8. SOURCE: People.com