There were a lot of frogs at Shohoji, temple 93 on the Kyushu Pilgrimage. The word for "frog", kaeru, is the word for "return", and so there is an association between frogs and returning safely.
The first photo is a very stylized statue of a frog covered in prayer requests. I would have thought the prayers would have concentrated on safe returns but in fact the full gamut of requests is represented:- passing exams, finding a girlfriend etc etc. This second photo is of Daikoku in the form of a frog.
Shohoji is known as "Child Frog Temple", with temple number 3, Nyorinji, being the "Parent Frog Temple". I will be getting to that temple much later in the pilgrimage. The priest at Shohoji is the son of the priest at Nyorinji.
The honzon of the temple is Yakushi Nyorai, the Medicine Buddha. In a secondary hall was I think an Amida statue and hundreds of childrens toy frogs including none other than Kermit.