How to Make a Moonwalking Simulator

Step (1.)

Make the moon piece out of endstone. 

Step (2.)

Get 3 repeating command block.

Step (3.)

Type this command into the first command block. execute @a ~ ~ ~ detect ~ ~-1 ~ minecraft:end_stone 0 /effect @a levitation 100 250.

Step (3.)

Type this command into the next command block. execute @a ~ ~ ~ detect ~ ~-1 ~ minecraft:end_stone 0 /effect @a jump_boost 100 15.

Step (4.)

Then type the last command into the last command block. execute @a ~ ~ ~ detect ~ ~-1 ~ minecraft:wool 15 0 /effect @a clear. Or any block it does not have to be wool 15 aka black wool. Also put all of the command blocks on always active.

Now you have a cool moonwalking simulator!