Go to Extras and have some fun with these!

AUC8EH
  Carrot Wands      

H27KGC
  Character Studs   

HA79V8
  Character Token Detector          

2FLY6B
  Collect Ghost Studs          

J9U6Z9
  Extra Hearts           

ZEX7MV
  Fall Rescue           

Z9BFAD
  Fast Dig     

84QNQN
  Gold Brick Detector        

TTMC6D
  Hogwarts Crest Detector           

QQWC6B
  Invincibility         

7AD7HE
  Red Brick Detector          

H8X69Y
  Score x10 

74YKR7
  Score x2    

XK9ANE
  Score x6   

HUFV2H
  Score x8