Loungefly x Nickelodeon SpongeBob Squarepants 20th Anniversary Mini BackpackI'm ready! I'm ready! I'm ready! Happy anniversary Spongebob!!! This is Loungefly's first ever collaboration with the iconic cartoon character Spongebob Squarepants! Coming straight outta Bikini Bottom. This faux leather backpack includes embroidered, applique, printed and debossed details. Look at his little arms that even move!! Plankton is even getting into the mix in the interior lining. Always trying to steal the formula for the Krabbie Patty.