Huge Multi-biome islands

I have seen every main biome as an island, but in all my years of searching for these beautiful places Its extremely rarely to ever seen an island mixed of 2 biomes or more. This is likely unintentional, but It would be amazing to see multi-biome islands become an intensional feature. Imagine washing up on the shore of an island 100% separated from mainland at least 40x40 chunks made of a combo of jungle, mountains, and desert. Paradise!