I have the Too Many Items mod script installed on Block Launcher. Honestly, I don't know where to get it, I have an app that found and downloaded it for me. But anyway, I found a funny glitch.
The toggle button on the bottom-right of the screen opens the items menu. When opened, a row of additional buttons are placed at the top-left. One of the buttons is labeled "...." and gives a small menu. One of the buttons says "ride an animal", then you tap on the mob you want to ride. I rode a creeper in Creative, and apparently when I got off, the creeper itself was also in Creative. He was floating in air above the blocks. He was right next to water, and I dug underneath him. The water flowed, but he didn't fall into it. And when he left, he ran across the lake, pretty quickly too.
The toggle button on the bottom-right of the screen opens the items menu. When opened, a row of additional buttons are placed at the top-left. One of the buttons is labeled "...." and gives a small menu. One of the buttons says "ride an animal", then you tap on the mob you want to ride. I rode a creeper in Creative, and apparently when I got off, the creeper itself was also in Creative. He was floating in air above the blocks. He was right next to water, and I dug underneath him. The water flowed, but he didn't fall into it. And when he left, he ran across the lake, pretty quickly too.