The easiest way to do this using an achievement world.
Here are three options that will work well on the Kindle Fire.
Downloaded Achievement World (ALL Credit goes to Itzz Sh0wt1m3, give him the upvote, he hasn't updated the links in his guides for this version)
1.
https://drive.google.com/drive/folders/1kf1Ln_ejxexg3j6SFBGB...2. Here is the realm code if you have trouble opening or don't feel like downloading a map: hYEbyVTi82w
3. Here is another realm from The Button King
https://open.minecraft.net/pocket/realms/invite/uZKDJV4SOpE