Design Shoes Online Footwear

How do I reveal the hidden graphics on my shoes?
I just bought the new “F**k Cancer” shoes from Loserkids/Macbeth footwear. It says to shread the top material of the pennet to revel the hidden drawings of Frank Iero. I don’t know how to shred it without ruining my new $70 shoes. There is no started pull thread or anything. Can someone help me? Maybe anyone who has them and has done it?
I called the online number and all I could get was the ordering department, the girl said they don’t have a direct number for customer service….
Please help!! I want to see the hidden designs!
try using a nail filer…i don’t have the shoes, but it sounds cool…
Shoes of Prey – Designer Your Own Shoe Online