You can get a command block in your Minecraft Java or Bedrock world using cheats and a special chat command.

Minecraft Redstone | Secret Rooms in Minecraft500 likes for more redstone w/o command blocks? :)This minecraft redstone tutorial will teach you how to make a secret room in minecraft for storing your ...

You can make glass in Minecraft by smelting blocks of sand, and combining the glass with other items can craft even more.