As You May Know, I Have Created A Challenge, Called The Iron X Challenge
Which Is The Medium-Hard Difficulty Challenge, Here Are The Challenges, With Difficulty, And The Ending Structure Description

Dirt Box Challenge
Difficulty-Uber Easy
Dirt = D Cobblestone = C, All Cobblestone Is One Block Behind Main Block
Structure
C C C C C
C D D D C
C D C D C
C D D D C

Stone Circle Challenge
Difficulty-Medium Easy
Stone = S Cobblestone = C
Structure
C S S S C
S C C C S
S C C C S
S C C C S
C S S S C

Iron X Challenge
Difficulty-Medium Hard
Iron Block = I Cobblestone = C
Structure
C C C C C
C I C I C C
C C I C C C
C I C I C C

If You Would Like To Be Part Of A Community Who Will Regularly Upload Videos On These Challenges, To Their Youtube Channels, The Please Just Say So, Im Working
On A Club Logo, And I Will Upload It As Soon As Its Done
Thanks
Blue