These are real preserved harlequin flying frogs (Rhacophorus pardalis)! Easily recognized by their stunning red foot webbing, they use these flaps of skin to help them glide away from danger.
These were collected and exported under permit from the Malinau Regency of North Kalimantan, Indonesia. They have been scientifically studied and rated as "Least Concern" of extinction by the IUCN.
They measure ~3.75" long and can be shipped worldwide.