PokePotential Mini #1: Hermit Crab homes created by Aki Inomata
These hermit crab homes, designed by artist Aki Inomata would be great inspiration for a design for a Pokemon based on hermit crabs.
Imagine a hermit crab Pokemon with a sand castle on its back. When exposed to a Thunder Stone, or after a battle where the Pokemon takes a hit from Thunderbolt, it evolves into a new Pokemon with a glass castle for a home.
This is inspired by Fulgurite, which is a rare silica glass formation that occurs when lightning strikes sand.