Midnight in Bikini Bottom
Midnight in Bikini Bottom was a skin created by tvguy347, released on December 6, 2014 for Sponge Out of Water, and was also released as a gift for Snowcember Ball 2014. The skin was removed following SBC's upgrade to IPB 4 with V11 Starfish. It was considered a fan favorite skin, and several have called for its return. It finally returned for Loyal Customers on September 27, 2018, after Patty Sponge and jjsthekid remastered it.
The current remastered version on IPS 4.
The skin as shown on the forums on IPB 3.