A 64-year-old man who had undergone pancreatoduodenectomy for cancer of the ampulla of Vater was referred to us for the treatment of recurrent pancreatitis. Computed tomography showed proximal migration of a trans-anastomotic pancreatic stent that had been placed at the time of the pancreaticojejunostomy, and this migrated stent was considered as being the cause of the recurrent pancreatitis. Endoscopic retrieval of the culprit stent was attempted by single-balloon enteroscopy. However, attempts at retrieval of the stent through the anastomotic site with baskets and snares failed, because the pancreatic duct was too small in diameter to use these devices. Although the stent tip could be grasped with the biopsy forceps under fluoroscopic guidance, it slipped from the forceps’ grasp, because it was firmly stuck in the pancreatic tail. Therefore, we created a retrieval device using a 0.025-inch guidewire and a double lumen catheter, whose snare loop could fit snugly against the small-diameter pancreatic duct and grasp the stent firmly enough to extract it. Finally, the stent was successfully retrieved with no complications. The handmade retrieval device proved effective to extract the migrated pancreatic stent. Although in the current case, the stent that was stuck in the pancreatic tail appeared to be impossible to retrieve endoscopically, we overcame the unusual situation by creating a handmade device with sufficient gripping force.